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Atmosphere MCQs with Answers
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1. Which of the following are true regarding the ionosphere? I. It is the uppermost layer of the atmosphere, II. The molecules and atoms of nitrogen and oxygen in this layer absorb a part of solar radiation and become ionized, III. This layer is responsible for reflecting back the radio wave transmitted from the earth
A. I and II
B. I and II
C. II and III
D. I II and III
Answer: Option C
2. Arrange the following gases of the atmosphere in increasing order by volume:,I. Nitrogen,II. Oxygen,III. Carbon dioxide,IV. Argon
A. I II III IV
B. I II IV III
C. III IV II I
D. IV III II I
Answer: Option C
3. Wind in the Southern hemisphere is deflected towards left due to ________
A. Temperature variations
B. Rotation of the earth
C. Difference in pressure
D. Difference in water content
Answer: Option B
4. Local thunderstorms ‘Nor westers’ are prominent in ________
A. Punjab
B. West Bengal
C. Andhra Pradesh
D. Tamil Nadu
Answer: Option B
5. Which of the following winds is incorrectly paired with the area in which it prevails?
A. Berg wind – South eastern Africa
B. Karaburan – Tarim basin of Sinkiang
C. Southerly Burster – New South Wales
D. Hurricanes – New Zealand
Answer: Option D
6. Consider the following statements regarding the distribution and pattern of isotherms,1. In the northern hemisphere, isotherms bend sharply equator-ward over the continents during winter.,2. Temperature gradients are greater in summer than in winter in the northern hemisphere.,Which of the statement(s) given above is/are correct?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer: Option A
7. Consider the following statements:,1. Either of the two belts over the oceans at about 30° to 35° N and S Latitudes is known as Horse Latitude.,2. Horse latitudes are low pressure belts.,Which of the statements given above is/are correct?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer: Option A
8. Warm dry winds blowing down the east slopes of Rockies are known as ________
A. Mistral
B. Nor’ westers
C. Foehn
D. Chinook
Answer: Option D
9. The study of the processes of atmosphere is called as
A. Astrology
B. Meteorology
C. Seismology
D. Astronomy
Answer: Option B
10. Consider the following statements,1. Tropical cyclones have circular isobars.,2. Tropical cyclones originate entirely within the tropical air mass.,3. The intensity and magnitude of hurricanes generally exceed those of typhoons.,4. Tropical cyclones are more destructive than the western disturbances.,Select the correct answer by using the following codes
A. 1 2 and 4
B. 1 only
C. 2 and 3
D. 3 and 4
Answer: Option A
11. Agents of fog formation do not include ________
A. High relative humidity
B. Diurnal temperatures of short ranges
C. Winter season
D. Rapid radiation
Answer: Option B
12. Which one among the following forces is most powerful in determining movement of wind including its velocity ?
A. Gravitational force
B. Centrifugal force
C. Frictional force
D. Pressure gradient force
Answer: Option D
13. Atmospheric humidity is measured by ________
A. Psychrometer
B. Anemometer
C. Lysimeter
D. Hydrometer
Answer: Option A
14. Which is the warmest layer of the atmosphere?
A. Thermosphere
B. Troposphere
C. Stratosphere
D. Mesosphere
Answer: Option A
15. Which of the following statements is not true of Trade Winds?
A. They blow from the Horse Latitudes to the Doldrums
B. They are deflected to the right to become South-East Trades in the southern hemisphere
C. They are constant in strength and direction
D. They sometimes contain intense depressions
Answer: Option B
16. Choose the correct option with the correct sequence of the layers of atmosphere
A. Mesophere Ionosphere Exosphere Troposphere Stratosphere
B. Ionosphere Exosphere Mesosphere Stratosphere Troposphere
C. Exosphere Troposphere Ionosphere Mesosphere Stratosphere
D. Troposphere Stratosphere Mesosphere Ionosphere Exosphere
Answer: Option D
17. Which of the following is specially true of anticyclones in the southern hemisphere?
A. The air moves in a circular manner
B. Pressure increases from the outside to the centre
C. They often form over continents
D. The air moves in an anti-clockwise direction
Answer: Option D
18. Countries favourably influenced by Westerlies are ________
A. Western Europe British Columbia and East of U.S.
B.
C. South-West Africa and South Chile
D. New Zealand
E. All of these
Answer: Option D
19. Which of the following is/are characteristic of a depression in the southern hemisphere?,I. It is a mass of air whose isobars form an oval or circular shape,II. Pressure is high in the centre and decreases towards the outside,III. Air moves anti-clockwise
A. I only
B. II only
C. I and III
D. All three
Answer: Option A
20. The hot and dry winds that help in the ripening of grapes in the Alps region is ________
A. Chi nook
B. Foehn
C. Mistral
D. Roaring Forties
Answer: Option B
21. What is approximately the quantum of the pressure exerted by the atmosphere at sea level?
A. One kg per sq km
B. One kg per sq mtr
C. Five kg per sq cm
D. Five kg per sq mtr
Answer: Option B
22. What is the percentage of Nitrogen in atmosphere of the Earth?
A. 0.94
B. 0.03
C. 78.03
D. 85.02
Answer: Option C
23. At low elevation which among the following clouds are to be found ?
A. Cirrus
B. Nimbus
C. Cumulus
D. Stratus
Answer: Option B
24. The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation?,1. There are no clouds or water vapour in the lower stratosphere.,2. There are no vertical winds in the lower stratosphere.,Which of the statements given above is/are correct in this context?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer: Option C
25. The most important factor in thunderstorms development is ________
A. Atmospheric stability
B. Atmospheric instability
C. Abundance of moisture
D. Temperature inversion
Answer: Option
26. The intensity of insolation depends on
A. Altitude
B. Nature of terrain
C. Wind
D. Latitude
Answer: Option D
27. The inner-most layer of the Earth is known as
A. Lithosphere
B. Mesosphere
C. Aesthenosphere
D. Barysphere
Answer: Option D
28. Which of the following statements is incorrect?
A. Roaring forties are the southern latitudes where Westerlies are prevalent
B. Monsoons are local seasonal winds
C. Doldrum belt lies between 10°N and 10°S latitudes
D. Horse latitudes are found between Trade winds and Westerlies
Answer: Option B
29. Evening sun is not a shot as the mid-day sun. What is the reason?
A. In the evening radiations travel slowly
B. In the evening the temperature of the sun decreases
C. Ozone in atmosphere absorbs more light in the evening
D. In the evening radiations travel larger distance through atmosphere
Answer: Option D
30. The water content in the atmosphere ________
A. Is independent of temperature
B. Increases as temperature increases
C. Decreases as temperature increases
D. Either increases or decreases with temperature increase
Answer: Option C
31. Which of the following is/are correct in matching the layer of atmosphere and its characteristic ?,I. Troposphere : weather phenomena,II. Stratosphere : ozone layer,III. Ionosphere : radio waves reflected to earth’s surface,IV. Mesosphere : Aurorae
A. I II III and IV
B. I II and IV
C. II and III
D. I II and III
Answer: Option D
32. What is true with regard to Jet Streams?,1. High velocity winds,2. Blow from west to east,3. Blow in upper troposphere near the tropopause,4. Blow in the mesosphere
A. 2 and 3
B. 2 and 4
C. 1 2 and 3
D. 1 2 and 4
Answer: Option C
33. The dry wind ‘Santa Ana’ blows in ________
A. Siberia
B. Argentina
C. Switzerland
D. California
Answer: Option D
34. Which one among the following statements relating to a cyclone is not correct?
A. It is a wind circulation system with a low pressure at the centre
B. It brings about sudden change In weather condition in an area
C. Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere
D. It is known as hurricane in West Indies
Answer: Option C
35. Which one of the following is a type of planetary wind?
A. Monsoons
B. Loo
C. Westerlies
D. Tornadoes
Answer: Option C
36. Which of the following sequences of clouds in ascending order would one meet 500 metres and above the mean sea level?
A. Stratus Nimbus Cirrostratus Cirrus
B. Nimbus Cirrostratus Cirrocumulus Stratus
C. Cirrostratus Stratus Cumulo-nimbus
D. Stratus Cirrostratus Cumulo-numbus Cirrocumulus
Answer: Option A
37. A sudden fall in the barometric reading indicates ________
A. Rain
B. Storm
C. Fine weather
D. Extreme cold
Answer: Option B
38. The amount of actual water vapour of air is known as ________
A. Absolute humidity
B. Dew point
C. Relative humidity
D. Condensation point
Answer: Option A
39. Precipitation takes place when ________
A. The sky is overcast with clouds
B. Temperature of moisture in air suddenly increases
C. Temperature of moisture in air sharply decreases
D. Winds begin to blow in a circular motion
Answer: Option B
40. Temperate cyclones bring along with them ________
A. Pleasant weather
B. Snowfall and hail
C. Thunderstorms and torrential rainfall
D. Mild rainfall
Answer: Option D
41. What is the name of the layer above Earth’s surface which is located at the height of 8km from poles and 16km from the equator?
A. Mesosphere
B. Atmosphere
C. Troposphere
D. Stratosphere
Answer: Option C
42. Which one of the following is the cloud that is dark-grey or black, found at very low height and brings the real rain?
A. Altocumulus
B. Cirrus
C. Cirrostratus
D. Nimbostratus
Answer: Option D
43. Which of the following is produced by the rapid ascent of moist air?
A. Frost
B. Fog
C. Hail
D. Snow
Answer: Option C
44. The correct sequence of different layers of the atmosphere from the surface of the Earth upwards is ________
A. Troposphere Stratosphere Ionosphere Mesosphere
B. Stratosphere Troposphere Ionosphere Mesosphere
C. Troposphere Stratosphere Mesosphere Ionosphere
D. Stratosphere Troposphere Mesosphere Ionosphere
Answer: Option C
45. Which of the following colour types do not indicate fair or fine weather?
A. Cirrus
B. Cumulus
C. Altocumulus
D. Cumulonimbus
Answer: Option D
46. The radiation that heats earth’s atmosphere comes from the
A. Sun
B. Earth
C. Ionosphere
D. Sun and earth
Answer: Option B
47. Why the Earth is having its own atmosphere?
A. Winds
B. Clouds
C. Gravity
D. Rotation of the Earth
Answer: Option C
48. Some large lakes in temperate latitudes have a moderating influence upon the climate of adjacent land surfaces. Such an influence may develop when ________
A. The water is shallow
B. The lake is high above sea level
C. Prevailing out-blowing winds cross the lake in winter
D. The lake is a basin of inland drainage
Answer: Option C
49. The clouds extending from one side of horizon to other as 3 dark grey sheet having uniform base are called ________
A. Stratus clouds
B. Cumulus clouds
C. Cirrus clouds
D. Nimbus clouds
Answer: Option A
50. Which of the following characterises the Foehn?,I. It is warm,II. It is humid,III. It is common in the valleys of the northern Alps,IV. It blows in winter
A. I II and IV
B. I II and III
C. I III and IV
D. I II III and IV
Answer: Option C
51. What do you understand by the term ‘Advection’ ?
A. Heat is transferred horizontally by winds
B. Heat is transferred horizontally by both winds and ocean currents
C. Heat is transferred vertically through the air
D. Heat is transferred horizontally through ocean currents
Answer: Option B
52. The continuous circulation of water among the hydrosphere, atmosphere and lithosphere is known as
A. Water circulation
B. Hydrologic cycle
C. Hydro-equilibrium
D. Precipitation
Answer: Option B
53. A level of atmosphere which is composed partly of Electrons and Positive Ions is called
A. Troposphere
B. Ionosphere
C. Stratosphere
D. Mesosphere
Answer: Option B
54. At which height, the gaseous surrounding has covered the Earth’s atmosphere?
A. 100km
B. 150km
C. 200km
D. 300km
Answer: Option D
55. Dew point is ________
A. Amount of actual water vapour present per unit volume of air
B. Incoming solar radiation
C. A low pressure system in lower atmosphere
D. A temperature at which a given sample of air becomes saturated
Answer: Option D
56. Which of the following layers of the Earth’s atmosphere provide ideal flying conditions for Jet aircraft?
A. Mesosphere
B. Thermosphere
C. Stratosphere
D. Troposphere
Answer: Option C
57. Doldrums are ________
A. High latitudes with heavy snow
B. Equatorial zone with low pressure
C. High pressure areas on mountains
D. Sub-polar zone with high pressure
Answer: Option B
58. Which of the following places are favourably influenced by the Trade winds?,I. West Indies,II. Brazil,III. Mexico,IV. Madagascar
A. I and II
B. I II III and IV
C. III and IV
D. II and IV
Answer: Option B
59. In the northern hemisphere, the wind blowing from the Horse latitudes to the Doldrums is called ________
A. Westerly wind
B. Trade wind
C. Polar Easterly
D. Jet Stream
Answer: Option B
60. The dense mass of small water drops on smoke particles in the lower layers of the atmosphere is ________
A. Smog
B. Frost
C. Fog
D. Dew
Answer: Option A
61. The chemically inactive gas present in the atmosphere is ________
A. Nitrogen
B. Argon
C. Water vapour
D. Oxygen
Answer: Option B
62. In which layer, temperature increases dramatically?
A. Ionosphere
B. Exosphere
C. Stratosphere
D. Troposphere
Answer: Option A
63. What is the major role of a greenhouse gas that contributes to temperature rise of the Earth’s surface?
A. Transparent to both incoming sunlight and outgoing infrared radiation
B. Stops both incoming sunlight and outgoing infrared radiation
C. Lets outgoing infrared radiation pass through but stops incoming sunlight
D. Lets incoming sunlight pass through but stops outgoing infrared radiation
Answer: Option D
64. Temperature generally decreases towards the poles because ________
A. Air movement is generally towards the. equator
B. Cold polar air masses prevent surface heating of the land
C. Cold surfaces do not absorb solar energy as readily as warm surfaces
D. Progressively lesser solar energy per unit area falls on the earth’s surface as we move to polar regions
Answer: Option D
65. Consider the following statements:,1. Troposphere varies in its thickness between equator and poles.,2. Stratosphere does not experience Normal Lapse Rate.,3. Ozone layer occurs in the Mesophere.,4. Ionosphere lies between Stratosphere and Mesosphere ,Which of these statements are correct?
A. 1 and 2
B. 2 and 3
C. 3 and 4
D. 1 2 and 4
Answer: Option A
66. Which of the following is a cold wind?
A. Buran
B. Foehn
C. Chinook
D. Sirocco
Answer: Option A
67. The albedo of which one among the following is the highest?
A. Cirrus cloud
B. Cumulonimbus cloud
C. Melting snow
D. Sand
Answer: Option A
68. Which of the following statements is not true?
A. Presence of water vapour is highly variable in the lower atmosphere.
B. The zone of maximum temperature is located along the equator.
C. Frigid zones are located in both the hemispheres between the polar circles and the poles.
D. Jet streams are high altitude winds affecting the surface weather conditions.
Answer: Option B
69. Land masses are heated and cooled much faster than water bodies. Identify the true statements in this regard:,I. Land gets heated by conduction,II. Water has higher specific heat,III. Only the surface layers of water are heated,IV. Water gets heated by convection
A. I II and III
B. II and III
C. I and IV
D. I II and IV
Answer: Option D
70. What is the correct sequence of the following zonal pressure belts?,1. Subpolar low,2. Equatorial low,3. Polar high,4. Subtropical high
A. 2 3 1 4
B. 1 4 2 3
C. 2 4 1 3
D. 1 3 2 4
Answer: Option C
71. The cold and dense air blowing down the mountain slope during the night is known as ________
A. Anabatic wind
B. Khamsin
C. Katabatic wind
D. Harmattan
Answer: Option C
72. The layer of atmosphere which reflects radio waves is
A. Ionosphere
B. Troposphere
C. Stratosphere
D. Exosphere
Answer: Option A
73. Venus has atmosphere made up of
A. Ammonia
B. Carbon dioxide
C. Helium
D. Hydrogen
Answer: Option B
74. The core of the Earth is also known as
A. Lithosphere
B. Mesosphere
C. Barysphere
D. Centrosphere
Answer: Option C
75. The capacity of the Atmosphere to hold water vapour
A. Increases as the temperature increases
B. Decreases as the temperature increases
C. Increases as the temperature decreases
D. Decreases as the temperature decreases
Answer: Option A
76. Frontal rain is caused by ________
A. Convection currents
B. Winds from sea
C. Cyclonic activity
D. Condensation of water evaporated from mountains
Answer: Option C
77. When the relative humidity is 50 percent and air temperature is 30°C, a cooling of air mass ________
A. Raises the absolute humidity
B. Produces no change in relative humidity
C. Decreases the relative humidity
D. Increases the relative humidity
Answer: Option C
78. Which of the following statements characterize the anticyclones?,1. Anticyclones are low pressure systems.,2. They are characterized by divergent wind circulation.,3. They are indicative of dry weather conditions.,Select the correct answer using the codes given below
A. 2 and 3
B. 1 and 3
C. 1 2 and 3
D. 1 only
Answer: Option A
79. Northern part of Australia is typified by which one of the following?
A. Equatorial climate
B. Mediterranean climate
C. Temperate climate
D. Monsoon climate
Answer: Option D
80. Very strong and cold icy winds that blow in the Polar regions are called ________
A. Typhoons
B. Tornadoes
C. Blizzards
D. Polar winds
Answer: Option C
81. In the northern hemisphere, currents are deflected to their right due to ________
A. Centrifugal force
B. Coriolis force
C. Cyclonic storms
D. None of these
Answer: Option B
82. Mist is a result of which one of the following?
A. Condensation
B. Evaporation
C. Sublimation
D. Saturation
Answer: Option A
83. The instrument used for measuring relative humidity in air is ________
A. Hygrometer
B. Hydrograph
C. Pantograph
D. Barograph
Answer: Option A
84. The hot dry local winds that blow on the eastern side of the Alps Mountain are known as ________
A. Chinook
B. Foehn
C. Khamsin
D. Sirocco
Answer: Option B
85. The contact of two air masses differing sharply in humidity originates:
A. Tropical cyclones
B. Inter-tropical convergence
C. Temperate cyclones
D. Tropospheric instability
Answer: Option C
86. Smog is likely to occur ________
A. Around valleys
B. Near lakes
C. On calm clear and cool nights
D. Near the industrial areas
Answer: Option D
87. The cauliflower shape is associated with which of the following cloud formations?
A. Stratus
B. Cumulus
C. Nimbus
D. Cirrus
Answer: Option B
88. Heat gain through insolation and heat loss through terrestrial radiation are equal approximately at which latitude?
A. 22° W North and South
B. 40° North and South
C. 90° North and South
D. 66° W North and South
Answer: Option B
89. Increase in carbon dioxide in atmosphere causes ________
A. Rise in earth temperature
B. Fall in earth temperature
C. Uniform earth temperature
D. Increase in Ultraviolet rays
Answer: Option A
90. Which one of the following is not a correct example of tropical cyclone?
A. Tornadoes
B. Typhoons
C. Hurricanes
D. Nor westers
Answer: Option D
91. Which of these statements are correct regarding the atmosphere of the earth:,1. It is enveloping the earth because of gravity.,2. Its density decreases with increasing height from the surface of the earth.,3. Its characteristic composition is same throughout its height.,4. Amount of pressure it exerts on earth’s surface at sea level is called one atm sphere.
A. 1 and 4
B. 2 and 4
C. 2 3 and 4
D. 1 2 and 4
Answer: Option D
92. Which are of the following is wrongly characterised?
A. Chinook- Canada – winter – warm
B. Khamsin – Egypt – spring – hot
C. Sirocco – Sahara – spring – hot
D. Mistral – Rhone Valley – summer – cold
Answer: Option D
93. When the wind is deflected due to the rotation of the Earth, it is called as ________
A. Geostropic wind
B. Polar wind
C. Westerlies
D. Trade winds
Answer: Option A
94. The innermost layer is the core with a radius of about ________ km.
A. 500
B. 6500
C. 9500
D. 3500
Answer: Option D
95. The absence of which among the following causes the temperature of the atmosphere to decrease with ascent along with decreasing density of air?,I. Vegetation,II. Water,III. Carbon dioxide,IV. Oxygen,V. Nitrogen
A. I and II
B. III and IV
C. II and III
D. II and V
Answer: Option C
96. Which one among the following statements relating to an anticyclone is correct?
A. Anticyclone is a wind system with a high pressure centre
B. In anticyclone the movement of wind is inward
C. The contribution of an anticyclone towards determining weather of an area is quite significant
D. The movement of wind is clockwise in an anticyclone of southern hemisphere
Answer: Option A
97. The instrument used for finding out wind-direction is ________
A. Anemometer
B. Wind vane
C. Wind gauze
D. Hygrometer
Answer: Option B
98. Logically, what does a continually rising air pressure indicate?
A. Advent of unsettled and cloudy weather
B. Advent of a cyclone
C. Fine and settled weather
D. Fine and unsettled weather
Answer: Option A
99. Which one of the following statements is correct?
A. Cirrus clouds are composed of ice crystals
B. Cirrus clouds exhibit a flat base and have the appearance of rising domes
C. Cumulus clouds are white and thin and form delicate patches and give a fibrous and feathery appearance
D. Cumulus clouds are classified as high clouds
Answer: Option A
100. A fragment of solid matter which enters the upper atmosphere from outer space almost disintegrating before reaching the earth’s surface is
A. Meteorite
B. Asteroid
C. Meteor
D. Comet
Answer: Option C
101. Doldrums are belts of low atmospheric pressure obtained in the regions adjoining the equator to a distance of ________
A. 5 degree latitude towards the north only
B. 5 degree latitude towards the south only
C. 5 degree latitude towards north and south
D. 15 degree latitude towards north and south
Answer: Option C
102. Consider the following statements:,1. The monsoon climate is found in Northern Australia.,2. The China type climate is found in Argentina.,Which of the statements given above is/are correct?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer: Option B
103. Consider the following statements:,1. The variation in an average annual range of temperature at 15° latitude of Southern Hemisphere is much less than that at 15° latitude of Northern Hemisphere.,2. At latitudes poleward of 35° the incoming radiation exceeds the outgoing radiation in. Northern Hemisphere, whereas in Southern Hemisphere the outgoing radiation exceeds the incoming radiation.,Which of the statements given above is/are correct?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer: Option A
104. Which of the following are true with regard to temperature control of the atmosphere of a given place?,I. The major temperature contrasts on earth’s surface are between land masses and oceans,II. During night, the water surface cools more rapidly than the land surface,III. Temperature generally decreases with latitude on either side of the equator,IV. Temperature rises to a maximum during summer and falls to a minimum during winter
A. I III and IV
B. II III and IV
C. I and II
D. II and IV
Answer: Option A
105. Fogs formed along, the sea-coast are due to ________
A. Advection
B. Radiaton
C. Convection
D. Conduction
Answer: Option A
106. Water vapour beyond the dew point results in ________
A. Precipitation
B. Hailstorm
C. Condensation
D. Formation of ice
Answer: Option C
107. Which one among the following is a high cloud?
A. Cirrus
B. Cumulonimbus
C. Nimbostratus
D. Stratus
Answer: Option A
108. Where do all meteorological incidents occur?
A. Stratosphere
B. Troposphere
C. Ionosphere
D. Exosphere
Answer: Option B
109. What is the correct sequence of the given clouds from low to high altitudes?
A. Stratus Cumulonimbus Cirrostratus Cirrus
B. Stratus Cirrostratus Cumulonimbus Cirrus
C. Cumulonimbus Stratus Cirrus Cirrostratus
D. Cumulonimbus Stratus Cirrostratus Cirrus
Answer: Option D
110. The portion of the atmosphere which extends from the earth’s surface upto 6-8 miles and experiences decrease in temperature at constant rate is ________
A. Stratosphere
B. Tropopause
C. Troposphere
D. Ionosphere
Answer: Option C
111. Which of the following statements is/are correct?,1. Cyclone is a low pressure system.,2. The wind movement is clockwise in the cyclone of northern hemisphere.,Select the correct answer using the code given below ________
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer: Option C
112. The total number of layers above Earth are
A. 4
B. 5
C. 2
D. 3
Answer: Option B
113. Troposphere is the hottest part of the atmosphere because
A. It is closest to the Sun
B. There are charged particles in it
C. It is heated by the Earth’s surface
D. Heat is generated in it
Answer: Option C
114. Troposphere is the most warm part of the atmosphere because
A. It is closer to the Sun
B. It contains charged particles
C. It gets warm from the heat of the surface of the Earth
D. It produces heat
Answer: Option C
115. Cyclone is a system of wind blowing ________
A. Spirally outwards from a high pressure region
B. Spirally towards low pressure region
C. In a straight line from high to low pressure region
D. From Ball of Bengal towards Bangladesh annually
Answer: Option B
116. Which of these statements are correct with reference to tornadoes?,1. Tornadoes are smaller and more intense than hurricanes.,2. Tornadoes are most abundant along the eastern coast of India.,3. The average tornado lasts for less than one hour.,4. Tornadoes are most common in the afternoons in the early summer.
A. 1 3 and 4
B. 2 3 and 4
C. 1 2 and 4
D. 1 2 and 3
Answer: Option A
117. The January isotherm taken as a basis for dividing India into tropical and subtropical zones is ________
A. 21° C
B. 18° C
C. 12° C
D. 15° C
Answer: Option D
118. Density of the Earth’s atmosphere is highest in the
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Ionosphere
Answer: Option A
119. A devastating Cloud Burst swept over Leh on August 2010. Which one of the following statements with regard to Cloud Burst is not correct?
A. Cloud Burst is a localized weather phenomenon representing highly concentrated rainfall over a small area in a short duration of time
B. Cloud Burst occurs due to upward movement of moisture laden air with sufficient rapidity to form cumulonimbus clouds
C. Cloud Burst occurs only in hilly areas
D. There is no satisfactory technique till now for predicting Cloud Burst
Answer: Option C
120. When can one record the lowest temperature of air?
A. Just before sunrise
B. At midnight
C. At 3 a.m.
D. No fixed time
Answer: Option A
121. Which of the following is wrongly matched?
A. Rainfall caused by mountain standing in the way of moisture – laden winds – relief rainfall
B. Rain caused by vertical circulation of air currents – orographic rainfall
C. Rain caused by a warm moist air mass moving upward over cold air mass – cyclonic rainfall
D. An area sheltered from rain bearing winds by a hill – rain shadow area
Answer: Option B
122. Pampero is ________
A. A cold wind which prevails in Argentina and Uruguay
B. A low pressure area in Equator 63° S
C. A moisture laden wind which brings rainfall to the west coast of Panama
D. A high pressure area which develops first and then leads to the formation of an anticyclone
Answer: Option A
123. An upper air wind system with very high velocities in certain parts of the atmosphere is called ________
A. A cyclone
B. An anticyclone
C. Jet stream
D. A tsunami
Answer: Option C
124. In the earth’s atmosphere, the atmospheric pressure ________
A. Increases with height
B. Decreases with height
C. Remains constant with height
D. First increases and then decreases with height
Answer: Option B
125. When a descending air contracts and its volume decreases, what happens to its temperature?
A. Its temperature decreases
B. Its temperature increases
C. Its temperature remains constant
D. Its temperature first increases then decreases
Answer: Option B
126. Which of the following is the annual precipitation of an area?
A. All forms of precipitation converted to the quantity of liquid water
B. The total actual amount of rain snow hail and sleet
C. The total amount of rain per year irrespective of snow hail and sleet
D. All forms of precipitation measured after conversion to equal quantity of ice
Answer: Option A
127. Condensation is a process which occurs when
A. Temperature falls below 0°C
B. Absolute humidity becomes equal to relative humidity
C. Temperature in the air parcel remains static
D. Relative humidity becomes 100% and more
Answer: Option D
128. Which one of the following conditions is not necessary for precipitation to occur?
A. The air must be warm
B. The air must be saturated
C. The air must be cooled below its dew point
D. The air must contain hygroscopic particles
Answer: Option A
129. Transfer of surplus heat from the lower latitudes to higher latitudes is done by :,I. ocean currents,II. planetary winds,III. tides,IV. waves
A. I and II
B. III and IV
C. I and IV
D. II and III
Answer: Option A
130. The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from ________
A. Troposphere
B. Mesosphere
C. Stratosphere
D. Ionosphere
Answer: Option D
131. Which of the following are true regarding ionosphere?,I. It is the uppermost layer of atmosphere,II. The molecules and atoms of nitrogen and oxygen in this layer absorb a part of solar radiation and become ionized,III. This layer is responsible for reflecting back the radio wave transmitted from the earth
A. I and II
B. I and II
C. II and III
D. I II and III
Answer: Option C
132. Arrange the following gases of the atmosphere in increasing order by volume:,I. Nitrogen,II. Oxygen,III. Carbon dioxide,IV. Argon
A. I II III IV
B. I II IV III
C. III IV II I
D. IV III II I
Answer: Option C
133. Wind in the Southern hemisphere is deflected towards left due to ________
A. Temperature variations
B. Rotation of the earth
C. Difference in pressure
D. Difference in water content
Answer: Option B
134. Local thunderstorms ‘Nor westers’ are prominent in ________
A. Punjab
B. West Bengal
C. Andhra Pradesh
D. Tamil Nadu
Answer: Option B
135. Which of the following winds is incorrectly paired with the area in which it prevails?
A. Berg wind – South eastern Africa
B. Karaburan – Tarim basin of Sinkiang
C. Southerly Burster – New South Wales
D. Hurricanes – New Zealand
Answer: Option D
136. Relative humidity
A. Increases with increased temperature
B. Decreases with increased temperature
C. Decreases with decreased temperature
D. Has no relation with increase or decrease of temperature
Answer: Option B
137. The form of precipitation in which the raindrops get frozen into ice on coming in contact with a cold layer of air near the earth’s surface is called ________
A. Fog
B. Hail
C. Sleet
D. Snowfall
Answer: Option C
138. The term used for the zone at low pressure and light and variable winds in the oceanic equatorial regions is ________
A. Depression
B. Doldrums
C. Horse-latitudes
D. Inter-tropical convergence
Answer: Option A
139. In the Southern hemisphere the Westerlies blow from ________
A. North
B. North east
C. North west
D. South east
Answer: Option C
140. Choose the incorrect statement ________
A. Capacity of air to hold moisture decreases with a rise in temperature of the air
B. The air pressure decreases with an increase in temperature
C. Absolute humidity is expressed in grams per cubic metre of air
D. With an ascent of every 165 metres the temperature is reduced by 1°C
Answer: Option C
141. Which of the following sequences of atmospheric layers is correct from below?
A. Stratosphere Ionosphere Tropopause Troposphere
B. Ionosphere Troposphere Stratosphere Tropopause
C. Troposphere Tropopause Stratosphere Ionosphere
D. Tropopause Troposphere Ionosphere Stratosphere
Answer: Option C
142. The atmospheric layer farthest from the Earth’s surface is known as
A. Stratosphere
B. Exosphere
C. Ionosphere
D. Mesosphere
Answer: Option B
143. Anticyclones are caused by ________
A. Violent winds
B. Heavy rainfall
C. Winds that blow spirally outwards from the centre
D. Winds that blow spirally inwards
Answer: Option C
144. The Trade winds are caused by ________
A. Rotation of the earth
B. Revolution of the earth
C. Inflowing movement of air along the earth’s surface towards the equator
D. None of these
Answer: Option C
145. Which one of the following constituents of the atmosphere causes greatest changes in climate and weather?
A. Nitrogen
B. Oxygen
C. Ozone
D. Water Vapour
Answer: Option D
146. The velocity of winds is related to ________
A. The amount of moisture they carry
B. The nearness to the sea
C. Pressure gradient in the direction of their flow
D. The direction in which they blow
Answer: Option C
147. Which one of the following climates is found in coastal areas of Californian North America, Central Chile in South America and South-West tip of West Australia?
A. Tropical savanna
B. Mediterranean
C. Humid Continental
D. Low-latitude steppe
Answer: Option B
148. Which of the following are the ideal conditions for the phenomenon of temperature inversion to occur? ,I. Long nights,II. Cloudy sky,III. Calm and stable air,IV. Dry air
A. I and II
B. I II and III
C. II III and IV
D. I III and IV
Answer: Option D
149. The heat from Sun to Earth is called as
A. Temperature Radiation
B. Insolation
C. Emitted Heat
D. Solar Radiation
Answer: Option D
150. An important gas in the atmosphere that absorbs sun’s ultraviolet rays is
A. Oxygen
B. Nitrogen
C. Ozone
D. Hydrogen
Answer: Option C
151. The layer of the atmosphere which provides ideal conditions for flying on jet aeroplanes is ________
A. Troposphere
B. Stratosphere
C. Ionosphere
D. Exosphere
Answer: Option B
152. Because of which one of the following factors, clouds do not precipitate in deserts?
A. Low pressure
B. Low humidity
C. High wind velocity
D. High temperature
Answer: Option B
153. Which one among the following local winds is not characteristically hot and dry?
A. Sirocco
B. Mistral
C. Khamsin
D. Chinook
Answer: Option B
154. Which one of the following characteristics is not associated with the tropical cyclones?
A. Before the cyclone arrives the air becomes very still and temperature and humidity are high
B. As the front of the vertex arrives gusty winds develop and thick clouds appear
C. As the cold front passes the weather changes very rapidly
D. Calm conditions return when the eye of the cyclone arrives
Answer: Option D
155. In the atmosphere of the primitive earth there was no ________
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Ammonia
Answer: Option A
156. Winds and air currents differ in the aspect that ________
A. Air currents blow much faster than winds
B. Air currents are always moisture laden while the winds are usually dry
C. The winds blow on lands while air currents blow over seas and oceans
D. Winds are horizontal movements of air while air currents are the vertical movements of air
Answer: Option D
157. Lapse rate is related to the decrease of ________
A. Wind velocity with an ascent of 300 feet
B. Humidity with an ascent of 450 feet
C. Temperature at 1°F for an ascent of 330 feet
D. Pressure with an ascent of 500 feet
Answer: Option C
158. The most abundant element in the Earth’s atmosphere is
A. Argon
B. Nitrogen
C. Oxygen
D. Krypton
Answer: Option B
159. A temperature inversion is most likely to occur under which of the following conditions?
A. Mountain top in late evening
B. Windy but cloudy night
C. Calm cloudy and humid night
D. Calm clear and cool winter night
Answer: Option D
160. The final boundary between the Earth and the outer space is called
A. Magnetosphere
B. Ionosphere
C. Mesopause
D. Magnetopause
Answer: Option D
161. What helps to maintain the heat budget on the surface of the earth?
A. Incoming insolation in short waves and terrestrial radiation in long waves
B. The atmosphere absorbs heat
C. Incoming solar radiation is reflected
D. The earth absorbs heat
Answer: Option A
162. Which of the following is not one of the three processes involved in the transfer of water between the atmosphere and the surface of the Earth?
A. Insolation
B. Evaporation
C. Condensation
D. Precipitation
Answer: Option A
163. Which gas is found in maximum quantity in lower atmosphere?
A. Hydrogen
B. Carbon dioxide
C. Oxygen
D. Nitrogen
Answer: Option D
164. Relative humidity of the atmosphere is directly affected by ________
A. Change in atmospheric pressure
B. Change in atmospheric temperature
C. Change in the direction of winds
D. None of these
Answer: Option B
165. Which of the following statements about Stratosphere is incorrect?
A. It is the region in the atmosphere above tropopause
B. It contains ozone layer which prevents ultraviolet radiations of sun from reaching to the earth
C. It is not free from the violent weather changes occurring on the earth
D. It provides ideal flying conditions
Answer: Option C
166. Cloud burst means ________
A. Abnormally heavy downpour of rain associated with a thunderstorm
B. Formation of artificial rain
C. Presence of scattered flakes of cloud in the sky
D. Sowing of seeds of a crop in a cloudy weather
Answer: Option A
167. Which of the following is located at the minimum height from the Earth?
A. Stratosphere
B. Mesosphere
C. Thermosphere
D. Troposphere
Answer: Option D
168. Beaufort Scale is used to measure ________
A. Air pressure
B. Wind velocity
C. Wind direction
D. Humidity
Answer: Option B
169. Which of the following depletion results in the increase in the UV radiation on the Earth?
A. Carbon monoxide
B. Carbon dioxide
C. Ozone
D. Oxygen
Answer: Option C
170. Consider the following statements:,1. Nearly 99 percent of the total mass of the atmosphere lies within 30 km of the Earth’s surface.,2. The proportion of ozone in the atmosphere increases to a maximum at about 60 km from Earth’s surface.,Which of the statements given above is/are correct?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer: Option A
171. Consider the following statements:,1. Mistral is a cold wind blowing in North America.,2. Sirocco is a hot dry wind blowing across the North African coast.,Which of the statement(s) given above is/are correct?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer: Option B
172. Consider the following statements:,1. The annual range of temperature is greater in the Pacific Ocean than that in the Atlantic Ocean.,2. The annual range of temperature is greater in the Northern Hemisphere than that in the Southern Hemisphere.,Which of the statements given above is/are correct?
A. 1 only
B. 2 only
C. Both 1and 2
D. Neither 1 nor 2
Answer: Option B
173. The zone of Earth’s atmosphere immediately above its surface up to a height of about 16kms above equator and 8kms over the poles is known as
A. Mesosphere
B. Thermosphere
C. Troposphere
D. Stratosphere
Answer: Option C
174. Freely moving bodies are ________
A. Deflected to their right in the northern hemisphere
B. Deflected to the right in the southern hemisphere
C. Deflected upwards at the equator
D. Unaffected by the earth’s movements
Answer: Option A
175. Which is the lowest layer of Atmosphere?
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Exosphere
Answer: Option A
176. What causes snowfall?
A. When condensation takes place below 0° C and precipitation occurs in the form of flakes
B. When rain freezes into snow-flakes while passing through the atmosphere
C. When condensation takes place in form of fog and precipitation occurs as flakes
D. When the air temperature is much lower than surface temperature
Answer: Option A
177. What is a cloudburst?
A. It refers to sudden and copious rainfall over a small area which often lasts for only a few minutes
B. It refers to 50mm rain over a period of time
C. It is caused by rapid condensation of very high clouds
D. It refers to a thunderstorm with little rain
Answer: Option A
178. Winds blow ________
A. In regions of low pressure
B. From a region of high pressure to a region of low pressure
C. From a region of low pressure to a region of high pressure
D. In regions of high pressure
Answer: Option B
179. The phenomenon of ‘trade winds’ takes place due to
A. Conduction of heat
B. Convection of heat
C. Radiation
D. None of the above
Answer: Option B
180. Which of the following statements is wrong?
A. Roughly circular isobar system with a high pressure at the centre represents an anticyclone
B. Roughly circular isobar system with a low pressure at the centre represents a cyclone
C. Roughly V-shaped isobar system with a low pressure at the centre represents a trough
D. Roughly V-shaped isobar system with a low pressure at the centre represents a hurricanes
Answer: Option D
181. With reference to the sub-tropical high pressure belt, consider the following statements:,1. It is affected by Earth’s rotation and descent of winds from higher altitudes.,2. It is dynamically induced and characterized with anti-cyclonic conditions.,Which of the statement(s) given above is/are correct?
A. 1 only
B. Both 1 and 2
C. 2 only
D. Neither 1 nor 2
Answer: Option C
182. Consider the following statements:,1. A hurricane acquires its spin from the Coriolis effect.,2. The diameter of the hurricane decreases as it moves away from low latitudes.,3. The diameter of a hurricane is never below 150 km.,Which of the statements given above is/are correct?
A. 1 only
B. 2 and 3 only
C. 1 and 3 only
D. 1 2 and 3
Answer: Option C
183. What is the name of the layer closest to the Earth?
A. Ionosphere
B. Stratosphere
C. Troposphere
D. Exosphere
Answer: Option C
184. Which of the following constituents of the atmosphere are important from the climatic point of view ? ,1. Nitrogen,2. Oxygen,3. Carbon dioxide
A. 1 and 2
B. 2 and 3
C. 1 2 and 3
D. Only 3
Answer: Option D
185. The Sea breeze blows during ________
A. Day from land to sea
B. Day from sea to land
C. Night from land to sea
D. Night from sea to land
Answer: Option B