Explore topic-wise MCQs in UPSC IAS Exam.

This section includes 2658 Mcqs, each offering curated multiple-choice questions to sharpen your UPSC IAS Exam knowledge and support exam preparation. Choose a topic below to get started.

2251.

Injurious ultraviolet radiations are mostly prevented from reaching the land surface as these are absorbed mostly by which one of the following?

A.  Stratosphere          
B.  Troposphere
C.  Ionosphere        
D.  Mesosphere
Answer» B.  Troposphere
2252.

Consider the following statements and select the following statements using the code given below: 1. India has the largest area under rice cultivation. 2. China is the leading producer of rice in the world 3. West Bengal has the largest area under rice cultivation in India 4. Thailand is the leading exporter of rice in the world Code:

A.  1, 2 and 3 are correct    
B.  1, 3 and 4 are correct
C.  1, 2, and 4 are correct    
D.  1, 2, 3 and 4 are correct
Answer» E.
2253.

Which of the following is not correct with respect to Jet Streams?   

A.  Jet streams are strong winds with normal speed of 100 to 300 km/hr
B.  Discovery of the Jet Streams was made by American airplanes during the World War I
C.  Jet streams shift pole wards during summer and equator wards during winter season.
D.  Velocity of the Jet stream in winter is almost twice the velocity the summer.
Answer» C.  Jet streams shift pole wards during summer and equator wards during winter season.
2254.

Arrange the following biosphere reserves in descending order in respect of area and select the correct area using the code given below: 1. Cold Desert      2. Gulf of Mannar 3. Kachchh   4. Sundarban

A. Kachchh, Gulf of Mannar, Sundarban and Cold Desert
B. Kachchh, Sundarban, Gulf of Mannar and Cold Desert
C. Sundarban, Kachchh, Cold Desert and Gulf of Mannar
D. Sundarban, Cold Desert, Gulf of Mannar and Kachchh
Answer» B. Kachchh, Sundarban, Gulf of Mannar and Cold Desert
2255.

In which of the following regions will you expect the highest annual range of temperature?

A. Savanna region
B. Equatorial region
C. Taiga region
D. Monsoon region
Answer» D. Monsoon region
2256.

Which one of the following biosphere reserves contain evergreen, semi-evergreen, deciduous species, bamboo patches, riverine forests and grasslands?

A. Nilgiri
B. Nokrek
C. Panchmarhi
D. Seshachalam
Answer» C. Panchmarhi
2257.

  The rubber plantation in India was stated first in the state of:

A.  Andhra Pradesh    
B.  Karnataka
C.  Kerala
D.  Tamil Nadu
Answer» D.  Tamil Nadu
2258.

Jet stream is westerlies in upper part of Troposphere. 

A.  Fast blowing
B.  Ocean current
C.  Monsoon winds
D.  None of these
Answer» B.  Ocean current
2259.

Consider the following statements and select the correct answer using the code given below:        1. The Great Rann owes its origin to the transgression of the sea water of the Arabian Sea entering through the Kori Creek.      2. Tidal waters of the Arabian Sea through the Kori inundates the Great Rann. 3. The Luni River discharges its water in the Great Rann in the monsoon season.

A. 1 and 2 are correct      
B.        1 and 3 are correct
C.        2 and 3 are correct      
D.        1, 2 and 3 are correct
Answer» C.        2 and 3 are correct      
2260.

About which of the following National Parks the phrase is used 'too deep to be a marsh, too shallow to be a lake:

A. Bhitarkanika        
B. Gulf of Mannar
C. Keibul Lamjo
D. Marine National Park
Answer» D. Marine National Park
2261.

Which of the following statements are true with regard to trophical monsoon climate?1. Temperatures range from \[32{}^\circ C\] in the hot season to about \[15{}^\circ C\] in the cool season.2. Annual rainfall varies greatly.3. The climate is best developed in the southern continents.4. It consists of three main seasons, i.e., cool, dry season; hot, dry season; hot, wet season.

A.  1 and 4    
B.  2, 3 and 4
C.  2 and 3    
D.  1, 2 and 4
Answer» E.
2262.

Which of the following statements is not applicable to temperate cyclones?

A. They originate in temperate lands.
B. Their origin is best explained by the Polar Front Theory of Bjerknes.
C. They are of smaller size than the tropical cyclones.
D. Their arrival is indicated by rise in temperature and fall in atmospheric pressure.
Answer» D. Their arrival is indicated by rise in temperature and fall in atmospheric pressure.
2263.

Match list I with list II and select the correct answer using the code given below List I?? ???????? (Process)??????? List II (Definition) A. Absorption?? 1. The reflection quality of a surface B. Albedo????? 2. Solar radiation which is intercepted by the earth. C. Refraction?? 3. The bending effect that occurs when insolation enters the atmosphere D. Insolation? ?4. Assimilation and conversion of radiation from one form to another in a medium

A. A-4 B-1C-3D-2
B. A-2B-3C-1D-4
C. A-1B-4C-2D-3
D. A-3B-2C-4D-1
Answer» B. A-2B-3C-1D-4
2264.

The conventions about the protection of ozone layer was held at:

A. Montreal Protocol and Bonn Convention
B. Monreal Protocoal and Vienna Convention Convention
C. Montreal and Cartagena Protocol
D. Montreal Protocol and Stockholm
Answer» C. Montreal and Cartagena Protocol
2265.

Consider the following pairs 1. Equatorial region     Rainfall throughout the year 2. Monsoon region      Rainfall mainly in summer season 3. Mediterranean region  Rainfall mainly in winter season Which of the above pairs is/are correctly matched?

A.  1 only      
B.  2 only
C.  1 and 2 only    
D.  1, 2 and 3
Answer» E.
2266.

  Consider the following statements about the rubber plantation and select the correct answer using the code given below: 1. Rubber plantation requires a temperature between \[{{25}^{o}}-{{35}^{o}}C\]. 2. Rubber grows well on deep well-drained loamy soil. 3. Tamil Nadu is the leading producer of rubber in India Code:

A.  1 and 2 are correct
B.  1 and 3 are correct
C.  2 and 3 are correct       
D.  1, 2 and 3 are correct
Answer» B.  1 and 3 are correct
2267.

  Which one of the following statements is not correct about the cultivation of tobacco?

A.  Tobacco was brought to India by the Portuguese in the 16th Century.
B.  Tobacco is grown from sea level up to 1300 m above the sea level.
C.  The average temperature between \[10{}^\circ \] and \[{{25}^{o}}C\]is best suited for tobacco cultivation.
D.  Tobacco is requires 50-70 cm of rainfall.
Answer» D.  Tobacco is requires 50-70 cm of rainfall.
2268.

A biosphere reserve has an altitudinal location between 1220-8586 meters above the sea level. The Ringit and Rathong rivers traverse the biosphere reserve. Identify the biosphere reserve out of the following:

A. Khangchendzonga
B. Nanda Devi
C. Nilgiri   
D. Dehang-Debang
Answer» B. Nanda Devi
2269.

Consider the following statements: 1. The reflective quality of a surface, expressed in percentage of the total energy received known as its albedo. 2. The albedo of water surface varies from 2 to 99 per cent depending on the angle of incidence of the sun's rays. 3. Albedo of old snow is layer than that of the fresh snow. 4. The overall albedo of clouds is larger than other surface. Which of the above statements is/are correct?

A. 1, 2 and 3 only
B. 2, 3 and 4 only
C. 1, 2 and 4 only
D. 1, 2, 3 and 4
Answer» D. 1, 2, 3 and 4
2270.

Consider the following statements about the Khangchendzonga (Kanchenjunga) Biosphere Reserve and select the correctanswer using die code given below: 1. It represents a wet climatic type in the Himalayas. 2. It represents the sub-tropical and temperate-moist evergreen to alpine pastures and cold deserts. 3. It has a reservoir of glaciers and wetlands.

A. 1 and 2 are correct      
B. 1 and 3 are correct
C. 2 and 3 are correct       
D. 1, 2 and 3 are correct
Answer» E.
2271.

Match the following List I List II A. Doldrums?????? 1. Equatorial B. Horse Latitudes 2. Polar High C. Frigid Zone???? 3. Sub-tropical high D. Torrid Zone???? 4. Tropics within Tropic of Cancer and Tropic of Capricorn

A. A - 1, B - 2, C - 3, D - 4
B. A - 1, B - 3, C - 2, D - 4
C. A - 2, B - 3, C - 1, D - 4
D. A - 3, B - 1, C - 1, D - 2
Answer» C. A - 2, B - 3, C - 1, D - 4
2272.

Consider the following statements regarding ITCZ. I. It is a low pressure area near the equator. II. It is at the convergence of NE and SE trade winds. III. It shifts its position to the north of equator in the summer and to the south of equator in the winter season.

A.  I is true  
B.  II, III are true
C.  I, II, III are true 
D.  I, III are true
Answer» C.  I, II, III are true 
2273.

  Match List I with List II and select the correct answer using the code given below: List I (Research Institute)   List II (Headquarters) (a) Central Arid Research Institute  1. Shimla (b) Institute of Rain and Moist Deciduous Forests 2. Ranchi (c) The Temperate Forest Research Centre   3. Jorhat (d) The Centre for Forest Productivity 4. Jodhpur Code:

A.          a-4    b-1      c-3      d-2
B.        a-4     b-1       c-2      d-3
C.          a-4    b-3       c-2      d-1
D.          a-4      b-3       c-1      d-2
Answer» E.
2274.

Which of the following is true of an anticyclone in the northern hemisphere?

A.  High pressure area surrounded by low pressure area.
B.  Circular movement of air from centre to peripherals.
C.  Direction of air is anticyclone.
D.  They are mainly formed over the continents.
Answer» D.  They are mainly formed over the continents.
2275.

Monsoons are best developed in I. India II. China III. Japan IV. Bangladesh

A. Only I
B. I and II only
C. I, II, III only
D. I, II, III, IV
Answer» E.
2276.

Consider the following statements and select the correct answer using the code given below: 1. Over 70% of the area of Nanda Devi falls above 4000 m. 2. The eco-tourism activities are practiced in a big way in the Nanda Devi Biosphere Reserve.

A. Only 1 is correct     
B. Only 2 is correct
C. Both 1 and 2 are correct       
D. Neither 1 nor 2 are correct
Answer» E.
2277.

Normally, the temperature decreases with the increase in height from the Earth's surface, because 1. the atmosphere can be heated upwards only from the Earth's surface. 2. there is more moisture in the upper atmosphere. 3. the air is less dense in the upper atmosphere. Select the correct answer using the codes given below:

A.  1 only     
B.  2 and 3
C.  1 and 3    
D.  1, 2 and 3
Answer» D.  1, 2 and 3
2278.

With reference to the International Union for Conservation of Nature and natural resources (IUCN) and the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), which of the following statements is/are correct? 1. IUCN is an organ of the United Nations and CITES is an international agreement between governments. 2. IUCN runs thousands of field projects around the world to better manage natural environments. 3. CITES is legally binding on the states that have joined it, but this Convention does not take the place of national laws. Select the correct answer using the code given below:

A. 1 only    
B. 2 and 3 only
C. 1 and 3 only      
D. 1, 2 and 3
Answer» C. 1 and 3 only      
2279.

DIRECTIONS: Match List-I with List-II and select the correct answer using the codes given below the lists. List-I List-II  Fog (1) A mass of minute droplets of water or tiny crystals of ice formed by the  condensation of water vapour in  free air at considerable elevations.  Cloud (2) Condensation at a dew point which   is at or below freezing point.  White Frost (3) Moisture deposited in the form of  water droplets on cooler surface of  solid objects such as stones, grass blades etc.

A.  A-4; B-2; C-1; D-3        
B.  A-3; B-2; C-1; D-4
C.  A-3; B-1; C-2; D-4        
D.  A-4; B-1; C-2; D-3
Answer» E.
2280.

Which of the following are rightly matched? List I List II A. Hurricanes?????? 1.? Coast of Florida B. Typhoons??????? 2.? Australia C. Willy-willies???? 3.? China D. Tornadoes?????? 4.? U.S.A.

A. 1 and 2 only
B. 2 and 3 only
C. 3 and 4 only
D. 1 and 4 only
Answer» E.
2281.

If the earth did not have an atmosphere, temperature extremes between day and night would [NDA 2010-I]

A.  increase     
B.  decrease
C.  stay the same            
D.  fluctuate rapidly
Answer» B.  decrease
2282.

Ozone layer of the Earth's atmosphere is important for living organisms because it     [NDA 2015-I]

A.  prevents entry of ultra -violet rays
B.  prevents entry of X-rays
C.  maintains level of oxygen on Earth
D.  prevents acid rain on Earth
Answer» B.  prevents entry of X-rays
2283.

Match list I with list II and select the correct answer using the code given below List I      List II A. Monsoon burst   1. Dry spell in the rainy season B. Monsoon break  2. Sudden onset of the monsoons C. Monsoon trough 3. Low pressure area in the Ganga Plain D. Monsoon retreat 4. Journey of the monsoons from north-west to south east in India. Code:

A. A-1       B-2       C-3       D-4
B. A-2       B-1       C-3       D-4
C. A-4       B-3       C-1       D-2
D. A-3       B-4       C-2       D-1
Answer» C. A-4       B-3       C-1       D-2
2284.

Perpendicular rays from the sun are usually hotter than the oblique rays because: I. They have to travel through smaller thickness of the atmosphere. II. They have to heat lesser area on the earth's surface.

A. Only 1 is correct
B. Only II is correct
C. Both I and II are correct
D. Neither I nor II is correct.
Answer» D. Neither I nor II is correct.
2285.

Consider the following statements and select the correct answer using the code given below: 1. The Nanda Devi Biosphere Reserve is located at the juncture of Greater Himalayas and Zanskar Range. 2. About 50 per cent of the Nanda Devi Biosphere Reserve is under ice.

A. 1 and 2 are correct       
B. Only 1 is correct
C. Only 2 is correct        
D. Neither 1 nor 2 is correct
Answer» C. Only 2 is correct        
2286.

  Which one of the following statements is not correct?

A.  Barley was domesticated in China
B.  Barley grain has the largest use for animal feed all over the world
C.  Barley is used for vinegar.
D.  Barley is used for kidney disorder.
Answer» B.  Barley grain has the largest use for animal feed all over the world
2287.

Consider the following statements and identify the right ones. [a] The temperature of air rises when its pressure falls. [b] The pressure of the air falls when the temperature

A.  I only  
B.  II only
C.  Both   
D.  None
Answer» C.  Both   
2288.

What causes high pressure in the sub-tropical zone?

A. Low temperature
B. Divergence of air
C. Convergence of air
D. Descending of air
Answer» E.
2289.

Consider the following statements: 1. Days and nights are longest in June and December respectively in the northern hemisphere. 2. Tropic of Cancer and Tropic of Capricorn represent the farthest northern and southern limits of the sun's vertical rays respectively. 3. At the time of summer Solstice, Norway and Finland never get sunshine. 4. At the time of winter solstice, the Antarctic continent is in complete darkness. Which of the above statements are correct?

A.  1 and 2 only   
B.  2 and 3 only
C.  3 and 4 only    
D.  1, 2, 3 and 4
Answer» B.  2 and 3 only
2290.

Assertion: India has a tropical monsoon climate. Reason (R): India is located within the tropical latitudes

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 the correct explanation of A
C.  A is true but R is false
D.  A is false but R is true
Answer» D.  A is false but R is true
2291.

Assertion (A): Areas near the equator receive rainfall throughout the year Reason (R): High temperature and high humidity cause convectional rain in most afternoons near the equator. In the context of the above statements, which one of the following is correct?

A.  Both A and R is true and R is the correct explanation of A
B.  Both A and R is true but R is not the correct explanation of A
C.  A is true but R is false
D.  A is false but R is true
Answer» B.  Both A and R is true but R is not the correct explanation of A
2292.

The temperature at which an air parcel will become saturated with the present amount of water vapour is called

A.  critical temperature    
B.  saturation point
C.  dew point   
D.  condensation point
Answer» C.  dew point   
2293.

The Agenda 21 of the Earth Summit was about:

A. Climatic Change
B. Biodiversity Conservation
C. Earth Charter
D. Sustainable Development
Answer» E.
2294.

Which of the following areas are not influenced by the monsoon winds?

A. India and Pakistan
B. Bangladesh and Myanmar
C. Indonesia and Philippines
D. Brazil and Bolivia
Answer» E.
2295.

  Which one of the following is not correct about the pulse pigeon-pea (Arhar)?

A.  It is a native species of India
B.  Its plant is woody.
C.  Its life cycle is 10 to 12 months.
D.  Its pods are straight and flattened, slightly hairy and have a pointed beak.
Answer» D.  Its pods are straight and flattened, slightly hairy and have a pointed beak.
2296.

Consider the following statements: 1. Heat energy radiated by the sun into space is known as solar insolation. 2. Slope of land does not have any effect on the amount of solar radiation received at a place. Which of the above statements is/are correct?

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» B. 2 only
2297.

Which of the following statements is/are correct? I. Water vapour in the atmosphere decreases with altitude. II. It increases from equator towards the poles. III. About 90% of atmospheric water vapour lies below 6 km. IV. It preserves earth's radiated heat.

A. I, II, III???
B. I, III, IV
C. I, II, III, IV
D. II, III, IV
Answer» C. I, II, III, IV
2298.

Which one of the following statements is not correct? 1. West Bengal has the largest area under rice cultivation in India 2. Punjab has the highest yield of rice in India 3. Rice is grown below the sea level in Kerala 4. Rice is grown 200 metres above the sea level Code:

A.  1, 2 and 3 are correct  
B.  1, 3 and 4 are correct
C.  2, 3 and 4 are correct  
D.  1, 2, 3 and 4 are correct
Answer» E.
2299.

Which layer of atmosphere is responsible for Auroral Boreahs?    [UP-PCS 2011]

A.  Troposphere
B.  Thermosphere     
C.  Ionosphere
D.  Exosphere 
Answer» C.  Ionosphere
2300.

Match the following A. Torrid zone 1. Between Tropic of Cancer and Tropic of Capricorn B. North Temperate Zone 2. Between Tropic of Capricorn and Antarctic Circle C. South Temperate Zone 3. Between Tropic of Cancer and Arctic Circle D. North Frigid Zone    4. Between Arctic Circle and North Pole

A. A-1       B-2      C-3       D-4
B. A-4       B-3      C-1       D-2
C. A-1       B-3      C-2       D-4
D. A-3       B-2      C-4       D-1
Answer» D. A-3       B-2      C-4       D-1