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Chapter:

160+ Atmosphere Solved MCQs

in World Geography

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) , Union Public Service Commission (UPSC) , Indian Administrative Service (IAS) .

Chapters

Chapter: Atmosphere
51.

Cyclone is a system of wind blowing: [CBI 1991]

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» B. spirally towards low pressure region
52.

Consider the following statements regarding general characteristics associated with tropical cyclones 1. Tropical cyclones move with very low velocity over the oceans but become strong while moving over the land areas. 2. They are confined to a particular period of the year (mainly summer) and normally move from east to west. Which of the statement(s) given above is/are correct? [IAS 2009]

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» B. 2 only
53.

Which one of the following constituents of the atmosphere causes greatest changes in climate and weather? [NDA 1995]

A. Nitrogen
B. Oxygen
C. Ozone
D. Water Vapour
Answer» D. Water Vapour
54.

Consider the following statements 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. Which of these statements are correct? [CDS 2002]

A. 1, 3 and 4
B. 2, 3 and 4
C. 1, 2 and 4
D. 1, 2 and 3
Answer» A. 1, 3 and 4
55.

The hot dry local winds that blow on the eastern side of the Alps Mountain are known as: [NDA 2003]

A. Chinook
B. Foehn
C. Khamsin
D. Sirocco
Answer» B. Foehn
56.

Which one of the following characteristics is NOT associated with the tropical cyclones? [NDA 2002]

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» D. Calm conditions return when the eye of the cyclone arrives
57.

Which of the following is/are wrongly matched? 1. Typhoon : China Sea 2. Tornado : Mid-Western United States 3. Hurricane : West Indies 4. Willy-Willies : Canada

A. 2 and 4
B. 1, 2 and 4
C. 2 and 3
D. 4 only
Answer» D. 4 only
58.

The clouds extending from one side of horizon to other as 3 dark grey sheet having uniform base are called: [IAS 2004]

A. Stratus clouds
B. Cumulus clouds
C. Cirrus clouds
D. Nimbus clouds
Answer» A. Stratus clouds
59.

Because of which one of the following factors, clouds do not precipitate in deserts? [CDS 2009]

A. Low pressure
B. Low humidity
C. High wind velocity
D. High temperature
Answer» B. Low humidity
60.

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? [IAS 2008]

A. 1only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» A. 1only
61.

The albedo of which one among the following is the highest? [IAS 2008]

A. Cirrus cloud
B. Cumulonimbus cloud
C. Melting snow
D. Sand
Answer» A. Cirrus cloud
62.

Of the solar energy coming into the Biosphere, what percentage of it is actually used in the photosynthesis? [IAS 2008]

A. Less than 1%
B. Between 1% and 15%
C. Between 15% and 2%
D. More than 2%
Answer» D. More than 2%
63.

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: [NDA 2008]

A. 2 and 3
B. 1 and 3
C. 1, 2 and 3
D. 1 only
Answer» A. 2 and 3
64.

Evening sun is not a shot as the mid-day sun. What is the reason? [NDA 2008]

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» D. In the evening, radiations travel larger distance through atmosphere
65.

Mist is a result of which one of the following? [CDS 2008]

A. Condensation
B. Evaporation
C. Sublimation
D. Saturation
Answer» A. Condensation
66.

Consider the following statements: 1. Either of the two belts over the oceans at about 30°to 35°Nand S Latitudes is known as Horse Latitude. 2. Horse latitudes are low pressure belts. Which of the statements given above is/are correct? [IAS 2007]

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» A. 1 only
67.

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? [IAS 2007]

A. 1 only
B. 2 only
C. Both 1and 2
D. Neither 1 nor 2
Answer» B. 2 only
68.

Consider the following statements: 1. In the tropical rainforest of Brazil, the average diurnal range of temperature is much greater than the average annual range of temperature. 2. In the humid subtropical climate of Kyushu island of Japan, the rainfall for the year almost totals that of the rainfall in tropical rainforest. Which of the statements given above is/are correct? [IAS 2007]

A. 1only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» C. Both 1 and 2
69.

Consider the following statements: 1. The variation in average annual range of temperature at1 5° latitude of Southern Hemisphere is much less than that at 15° latitude of Northern Hemisphere. 2. At latitudes pole ward 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? [IAS 2007]

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» A. 1 only
70.

Which one or the following climates is found in coastal areas of Californian North America, Central Chile in South America and South-West tip of West Australia? [IAS 2007]

A. Tropical savanna
B. Mediterranean
C. Humid Continental
D. Low-latitude steppe
Answer» B. Mediterranean
71.

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? [IAS 2007]

A. 1 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Answer» C. 1 and 3 only
72.

Northern part of Australia is typified by which one of the following? [IAS 2007]

A. Equatorial climate
B. Mediterranean climate
C. Temperate climate
D. Monsoon climate
Answer» D. Monsoon climate
73.

When a descending air contracts and its volume decreases, what happens to its temperature? [IAS 2009]

A. Its temperature decreases
B. Its temperature increases
C. Its temperature remains constant
D. Its temperature first increases, then decreases
Answer» B. Its temperature increases
74.

Condensation is a process which occurs when [IAS 2009]

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» D. relative humidity becomes 100% and more
75.

Which of the following sequences of clouds in ascending order would one meet 500 metres and above the mean sea level? [IAS 2009]

A. Stratus, Nimbus, Cirrostratus, Cirrus
B. Nimbus, Cirrostratus, Cirrocumulus, Stratus
C. Cirrostratus, Stratus, Cumulo-nimbus
D. Stratus, Cirrostratus, Cumulo-numbus, Cirrocumulus
Answer» A. Stratus, Nimbus, Cirrostratus, Cirrus
76.

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? [IAS 2009]

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» A. 1 only
77.

With reference to convectional type of rainfall, consider the following statements 1. It is a warm weather phenomenon. 2. This rainfall is associated with cumulo-nimbus clouds. Which of the statement(s) given above is/are correct? [IAS 2009]

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» C. Both 1 and 2
78.

A devastating Cloud Burst swept over Leh on August 2010. Which one of the following statements with regard to Cloud Burst is not correct? [CDS 2011]

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» C. Cloud Burst occurs only in hilly areas
79.

What is the major role of a greenhouse gas that contributes to temperature rise of the Earth's surface? [CDS 2012]

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» D. Lets incoming sunlight' pass through but stops outgoing infrared radiation
80.

Logically, what does a continually rising air pressure indicate? [CDS 2012]

A. Advent of unsettled and cloudy weather
B. Advent of a cyclone
C. Fine and settled weather
D. Fine and unsettled weather
Answer» A. Advent of unsettled and cloudy weather
81.

What is a cloudburst? [CDS 2012]

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» A. It refers to sudden and copious rainfall over a small area which often lasts for only a few minutes
82.

Rain shadow effect is associated with [NDA 2011]

A. Cyclonic rainfall
B. Orographic rainfall
C. Convectional rainfall
D. Frontal rainfall
Answer» B. Orographic rainfall
83.

The intensity of insolation depends on [NDA 2011]

A. Altitude
B. Nature of terrain
C. Wind
D. Latitude
Answer» D. Latitude
84.

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: [NDA 2011]

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» C. Both 1 and 2
85.

The phenomenon of 'trade winds' takes place due to [NDA 2011]

A. conduction of heat
B. convection of heat
C. radiation
D. None of the above
Answer» B. convection of heat
86.

Doldrums is a [NDA 2011]

A. Tropical wind belt
B. Tropical wind deflection belt
C. Sub-tropical wind belt
D. Tropical no-wind belt
Answer» D. Tropical no-wind belt
87.

Which one among the following statements relating to an anticyclone is correct? [NDA 2011]

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» A. Anticyclone is a wind system with a high pressure centre
88.

Troposphere is the hottest part of the atmosphere because [SSC Grad 2011]

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» C. it is heated by the Earth's surface
89.

Which one among the following statements relating to a cyclone is not correct? [Asstt Commdt 2011]

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» C. Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere
90.

Which one among the following forces is most powerful in determining movement of wind including its velocity ? [Asstt Commdt 2011]

A. Gravitational force
B. Centrifugal force
C. Frictional force
D. Pressure gradient force
Answer» D. Pressure gradient force
91.

Which one among the following local winds is not characteristically hot and dry? [Asstt Commdt 2011]

A. Sirocco
B. Mistral
C. Khamsin
D. Chinook
Answer» B. Mistral
92.

Relative humidity [Asstt Commdt 2011]

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» B. decreases with increased temperature
93.

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? [CSAT 2011]

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» C. Both 1 and 2
94.

Westerlies in southern hemisphere are stronger and persistent than in northern hemisphere. Why? 1. Southern hemisphere has less landmass as compared to northern hemisphere. 2. Coriolis force is higher in southern hemisphere as compared to northern hemisphere. Which of the statements given above is fare correct? [CSAT 2011]

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» A. 1 only
95.

A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why? 1. The presence of ozone causes the reflection of radio waves to Earth. 2. Radio waves have a very long wavelength. Which of the statements given above is fare correct? [CSAT 2011]

A. 1only
B. 2 only
C. Both 1and 2
D. Neither 1 nor 2
Answer» D. Neither 1 nor 2
96.

Consider the following statements about anticyclones: (1) The winds are divergent, and spiral out from the centre of high pressure (2) The air moves clockwise in the Northern Hemisphere and anticlockwise in Southern Hemisphere (3) It is accompanied by heavy rainfall (4) A sudden rise in barometric reading heralds the approach of anticyclone Which of these statements are correct?

A. 1 and 2
B. 1 and 4
C. 1, 2 and 3
D. 1, 2 and 4
Answer» D. 1, 2 and 4
97.

Which one of the following statements is correct? [IAS 2004] Hurricanes:

A. form at the equator
B. are not as large as tornadoes
C. develop over warm ocean areas
D. tend to intensify when they move over land surfaces
Answer» C. develop over warm ocean areas
98.

The instrument used for measuring relative humidity in air is :

A. hygrograph
B. hydrograph
C. pantograph
D. barograph
Answer» A. hygrograph
99.

Atmospheric humidity is measured by: [NDA 1994]

A. Psychrometer
B. Anemometer
C. Lysimeter
D. Hydrometer
Answer» A. Psychrometer
100.

Frontal rain is caused by:

A. convection currents
B. winds from sea
C. cyclonic activity
D. condensation of water evaporated from mountains
Answer» C. cyclonic activity

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