Geography › Atmosphere & Climatology – UPSC Prelims PYQs

69 questions · 1995–2026 · answers as per the UPSC key · page 2 of 2

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Assertion (A): The surface winds spiral inwards upon the centre of the cyclone.

Reason (R): Air descends in the centre of the cyclone.

(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
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Answer: (b) Both A and R are individually true but R is not a correct explanation of A

The temperature and rainfall of a meteorological station are given below: JFMAMJJASOND Temperature (°C): 9.4 10.6 11.7 12.2 13.3 13.9 13.9 14.4 15.6 15.0 13.3 10.6 Rainfall (cm): 12.2 9.1 7.9 2.5 1.8 0.3 – – 0.8 2.5 6.1 11.7 Average Temperature: 12.8 °C

Average Rainfall: 54.9 cm per annum

Identify the region having the above climatic pattern from amongst the following:

(a) Mediterranean region
(b) Monsoon region
(c) Steppe region
(d) North-West European region
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Answer: (a) Mediterranean region

Match List I with List II

and select the correct answer using the codes given below the Lists:

List I

(Local Wind)

I. Fohn II. Samun III. Santa Ana IV. Zonda

List II

(Region)

A) Argentina

B) Kurdistan

C) California

D) Alps

Codes:

(a) I-B, II-D, III-A, IV-C
(b) I-D, II-B, III-C, IV-A
(c) I-B, II-D, III-C, IV-A
(d) I-D, II-B, III-A, IV-C
Show answer
Answer: (b) I-D, II-B, III-C, IV-A

Assertion (A): Anti-cyclonic conditions are formed in winter season when atmospheric pressure is high and air temperatures are low.

Reason (R): Winter rainfall in Northern India causes development of anticyclonic conditions with low temperatures.

(a) Both A and R are individually true, and R is the correct explanation of A
(b) Both A and R are individually true, but R is NOT a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Show answer
Answer: (c) A is true, but R is false

Cloudy nights are warmer compared to clear cloudless nights, because clouds

(a) prevent cold waves from the sky from descending on Earth
(b) reflect back heat given off by Earth
(c) produce heat and radiate it towards Earth
(d) absorb heat from the atmosphere and send it towards Earth
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Answer: (b) reflect back heat given off by Earth

Which of the following weather conditions is indicated by a sudden fall in barometer reading?

(a) Stormy weather
(b) Calm weather
(c) Cold and dry weather
(d) Hot and sunny weather
Show answer
Answer: (a) Stormy weather

Consider the following statements about the “Roaring Forties”: I. They blow uninterrupted in the Northern and Southern Hemispheres. II. They blow with great strength and constancy. III. Their direction is generally from North-West to East in the Southern Hemisphere. IV. Overcast skies, rain and raw weather are generally associated with them.

Which of these statements are correct?

(a) I, II and III
(b) II, III and IV
(c) I, III and IV
(d) I, II and IV
Show answer
Answer: (b) II, III and IV

Which one of the areas marked as A, B, C and D in the given figure of the cyclone, witnesses heavy torrential short-duration rainfall accompanied by thunderstorms?

(a) A
(b) B
(c) C
(d) D
Show answer
Answer: (c) C
This question uses a table or figure from the original paper that is not reproduced here.

Consider the following temperature and rainfall data: Month Temperature °C Rainfall cm January

6.7

14.0

February

6.7

13.2

March

7.2

11.4

April

8.9

9.4

May

11.1

8.1

June

13.9

8.1

July

15.0

9.6

August

15.0

12.2

September 13.9 October

10.4

11.1

14.4

November

8.9

14.0

December

7.8

16.8

The climate to which this data pertains is

(a) St. Lawrence type
(b) China type
(c) West European type
(d) Mediterranean type
Show answer
Answer: (c) West European type

July 27.8 14.5 August 27.8 14.0

September 22.3 12.7 October 18.3 7.0 November 12.2 5.0 December 6.7 3.5 These data are most likely to be found in the natural regions of

(a) China type
(b) Equatorial type
(c) Hot desert type
(d) Monsoon type
Show answer
Answer: (a) China type

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
Show answer
Answer: (c) Troposphere, Stratosphere, Mesosphere, Ionosphere

Match List I with List II

and select the correct answer by using the codes given below the lists:

List I (Climatic Conditions) I. Chennai is warmer than Calcutta II. Snowfall in Himalayas III. Rainfall decreases from Depressions IV. Sutlej-Ganga Plain gets some rain in winter

List II (Reasons) A) North-east Monsoon B) Altitude C) Western West Bengal to Punjab D) Distance from sea E) Latitude

Codes:

(a) I-A, II-B, III-D, IV-E
(b) I-D, II-E, III-A, IV-C
(c) I-E, II-B, III-D, IV-C
(d) I-E, II-A, III-C, IV-D
Show answer
Answer: (c) I-E, II-B, III-D, IV-C

The January isotherm taken as a basis for dividing India into tropical and sub-tropical zones is

(a) 21 °C
(b) 18 °C
(c) 12 °C
(d) 15 °C
Show answer
Answer: (b) 18 °C

Consider the map given below:

Of the four shaded areas in the map, that which is characterised by hot dry summers, mild and moist winters and seasonal reversal of winds is the area labelled

(a) 1
(b) 2
(c) 3
(d) 4
Show answer
Answer: (a) 1
This question uses a table or figure from the original paper that is not reproduced here.

Which one of the following layers of the atmosphere is responsible for the deflection of radio waves?

(a) Troposphere
(b) Stratosphere
(c) Mesosphere
(d) Ionosphere
Show answer
Answer: (d) Ionosphere

Assertion (A): Areas near the equator receive rainfall throughout the year.

Reason (R): High temperatures and high humidity cause convectional rain in most afternoons near the equator. In the context of the above two statements, which one of the following is correct?

(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
Show answer
Answer: (a) Both A and R are true and R is the correct explanation of A

High temperature and low pressure over the Indian sub-continent during the summer season, draws air from the Indian Ocean leading to the in-blowing of the

(a) Southeast monsoon
(b) Southwest monsoon
(c) Trade winds
(d) Westerlies
Show answer
Answer: (b) Southwest monsoon

Willy Willy is

(a) a type of tree grown in temperate regions
(b) a wind that blows in a desert
(c) a tropical cyclone of north-west Australia
(d) a kind of common fish found near Lakshadweep islands
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Answer: (c) a tropical cyclone of north-west Australia

The clouds float in the atmosphere because of their low

(a) temperature
(b) velocity
(c) pressure
(d) density
Show answer
Answer: (d) density