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.

2051.

Consider the following statements: I. Insulation is the heat energy and temperature is the measure of heat intensity. II. Insulation is measured in calories whereas temperature is expressed in degrees (\ [^ {o} C\]or\[^{o}F\]). III. Insolation is the effect and temperature is the cause. Find out the correct statements using the following code.

A.  I only       
B.  I and II only
C.  I, II and III      
D.  II and III only
Answer» C.  I, II and III      
2052.

Consider the following statements: 1. In tropical grassland regions, rainfall mainly occurs 2. in the short summer season with a long dry season. 3. In Mediterranean region, the winter rainfall is caused 4. by the passage of cyclones in the westerly wind belt which lies over this area. 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» D.  Neither 1 nor 2
2053.

Which of the following are wrongly matched? 1. Typhoons  China Sea 2. Cyclones   West Indies 3. Hurricanes  Indian Ocean 4. Tornadoes  Australia

A.  1, 2 and 4
B.  2, 3 and 4
C.  2 and 4
D.  3 and 4
Answer» D.  3 and 4
2054.

Jet streams are usually found in the

A.  ozonosphere    
B.  mesosphere
C.  tropopause      
D.  ionosphere
Answer» D.  ionosphere
2055.

Consider the following statements in respect of temperate cyclones: 1. They rise in the belt of trade winds. 2. They move from west to east. Which of the statements given above is/are correct?

A.  Only 1
B.  Only 2
C.  Both 1 and 2
D.  Neither 1 nor 2
Answer» C.  Both 1 and 2
2056.

It is known that the atmosphere is divided into some layers. In which one among the following layers, is the percentage composition of Helium gas maximum?       [NDA/NA 2013-II]

A.  Troposphere       
B.  Stratosphere
C.  Exosphere        
D.  Ionosphere
Answer» D.  Ionosphere
2057.

The Burans arc the

A.  Cold local winds in Mediterranean region
B.  Local hot winds in California
C.  Local cold winds of Siberia
D.  Local hot winds of Western Australia
Answer» D.  Local hot winds of Western Australia
2058.

Match the following List I      List II (Local wind)        (Country/Region) A. Getii   1. Tarim Basin B. Kharaburan      2. Libya C. Harmettan       3.  Adriatic sea D. Bora   4.  Sahara

A. A-2       B-1      C-4       D-3
B. A-1       B-2      C-3       D-4
C. A-3       B-4      C-1       D-2
D. A-4       B-2      C-3       D-1
Answer» B. A-1       B-2      C-3       D-4
2059.

Consider the following statements and select the correct answer using the code given below: 1. Drip irrigation involves low initial cost. 2. Levelling of land is required in is required in drip irrigation. Code:

A.  Only 1 is correct        
B.  Only 2 is correct
C.  Both 1 and 2 are correct  
D.  Neither 1 nor 2 is correct
Answer» E.
2060.

The Critically Endangered Species do not fulfill which one of the following criterion:

A. Reduction in population size of a species 70% over the last 10 years.
B. Quantitative analysis showing the probability of extinction in wild at least 50 % in the last 10 years? time.
C. Population size less than 50 mature individuals.
D. Species occupying the areas of extreme climates.
Answer» E.
2061.

Consider the following statements and select the correct answer using the code given below: 1. Eco-tourism and eco-development activities are encouraged in the Cold Desert Biosphere Reserve. 2. The major occupations include agriculture, horticulture and sheep and goat rearing. 3. Apple, potato, wheat and barley are the main crops of the Cold Desert Biosphere Reserve.

A. 1, 2 and 3 are correct
B.        1 and 2 are correct
C.        2 and 3 are correct       
D.        1 and 3 are correct
Answer» B.        1 and 2 are correct
2062.

Consider the following temperature and rainfall data Month Temperature \[{{(}^{\mathbf{o}}}\mathbf{C})\] 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 10.4 October 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
Answer» E.
2063.

Collision-Coalescence process of precipitation is applicable to        [NDA 2014-II]

A.  clouds which extend beyond freezing level
B.  those clouds which do not extend beyond the freeing level
C.  all types of clouds
D.  cumulonimbus cloud
Answer» B.  those clouds which do not extend beyond the freeing level
2064.

  Consider the following statements: 1. Clouds generally reflects some of the sunlight in different directions and the rest is absorbed. 2. Nearly 90% of the water vapour lies below 12 km of the atmosphere. 3. Water vapour does not exceed 3 percent to 4 percent of total volume of air. 4. Nitrogen serves mainly as dilutant and dissolver. Which of the above statements is/are not correct?

A.  1 and 2    
B.    2 and 3
C.  3 only     
D.    3 and 4
Answer» B.    2 and 3
2065.

Which of the following statements are true regarding trade winds? 1. They constantly blow from tropical high pressure belt to equatorial low pressure belt. 2. They derive their name from the trade which was carried on with help of these winds in the medieval period. 3. They bring lot of rainfall to the equatorial low pressure belt. 4. They are deflected from their path due to the earth's rotation.

A.  1 and 2 only    
B.  2 and 3 only
C.  2 and 4 only    
D.  1 and 4 only
Answer» E.
2066.

The ozone deflection can cause: 1. Skin cancer particularly to white skinned people. 2. Crop damage 3. Throat irritation and fatigue 4. Injury to some aquatic life Find out the correct answer using code given below.

A.  1 and 2 only    
B.  1, 2 and 3 only
C.  1, 2, 3 and 4    
D.  2, 3, 4 only
Answer» D.  2, 3, 4 only
2067.

Which of the following pairs is/are not correctly matched? List I (Theory of monsoon winds) List II (Scholar) 1. Classical Theory??? 1. Edmund Hally 2. Air Mass Theory???? 2. M.T. Yin 3. Jet Stream Theory?? 3. H. Flohn

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3
Answer» B. 1 and 2 only
2068.

The largest sized most colourful butterflies are found in the state of:

A. Meghalaya
B. Mizoram
C. Nagaland  
D. Tripura
Answer» B. Mizoram
2069.

Examine the following statements and find out the correct answer using the following codes: [a] Moscow in the Russian Federation has the highest annual range of temperature in the world. [b] Singapore has one of the lowest annual ranges of temperature in the world.

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
Answer» C. Both 1 and 2
2070.

Which of the following is/are correctly matched? 1. Doldrum?????????? Equatorial low pressure belt 2. Horse Latitudes? Sub-polar low pressure belt 3.? Torrid zone???? Sub-tropical high pressure belt

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3
Answer» B. 1 and 2 only
2071.

A layer in the Earth's atmosphere called ionosphere facilities 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/are correct?

A.  1 only
B.  2 only
C.  Both 1 and 2        
D.  Neither 1 nor 2
Answer» E.
2072.

Match list I with list II and find out the correct answer using code given below. List I (Air mass)         List II (Property) A. Maritime Polar       1. Cool dry B. Continent Polar      2. Cool moist C. Maritime Tropical    3. Warm moist D. Continental Tropical 4. Warm dry

A. A-4       B-3      C-1       D-2
B. A-2       B-1      C-3       D-4
C. A-3       B-4      C-2       D-1
D. A-1       B-2      C-4       D-3
Answer» C. A-3       B-4      C-2       D-1
2073.

Match the following List I (Clouds) List II (Possible weather changes) A. Altostratus????? 1. Impending rain or snow B. Cumulus?????? 2. Fair weather C. Stratocumulus?? 3. Possibility of rain D. Cirrus????????? 4. Showery weather

A. A-1, B-2, C-3, D-4
B. A-1, B-4, C-3, D-2
C. A-2, B-3, C-4, D-1
D. A-3, B-1, C-2, D-4
Answer» B. A-1, B-4, C-3, D-2
2074.

Mid-latitude cyclones [NDA 2017-1]

A.  usually move across North-America from East to West
B.  are generally found only over the ocean
C.  generally bring clear skis and little precipitation
D.  are formed in regions of strong temperature contrasts
Answer» E.
2075.

Which of the following fact about dust particles in the atmosphere is/are correct? I. They act as hydroscopic nuclei around which water vapour condenses to produce cloud. II. They produce dawn and dusk. III. They have no role in the apparent colour of the sky.

A. I and II
B. II and III
C. I, II and III
D. I and III
Answer» B. II and III
2076.

  Assertion: The eastern coast of India is affected by tropical cyclones more than the western coast. Reason (R): Tropical cyclones originate only in the Bay of Bengal.

A. Both A and R is 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
2077.

Consider the following statements and select the correct answer using the code given below: 1. Wheat sown mixed barley are 'competitive crops.' 2. Spinach and Lady fingers are 'truck crops'. 3. Horse gram and soybeans are leguminous crops' 4. Onion and potatoes are known as 'ware-house crops.' Code:

A.  1, 2 and 3 are correct   
B.  1, 2 and 4 are correct
C.  1, 3 and 4 are correct    
D.  1, 2, 3 and 4 are correct
Answer» E.
2078.

Consider the following statements: 1. Speed of the valley breeze is approximately proportional to the square root of the temperature differences between the top and bottom of the valley 2. Mountain breezes generally cause inversion of temperature in the valley 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» D. Neither 1 nor 2
2079.

The Seshadri, Neeladri, Garudari, Anjandari, Vishbhadri, Narayandri and Venkatadri peaks lie in which of the following biosphere reserves?

A. Achanakmar-Amarkantak
B.        Agasthyamalai
C.        Panchmarhi        
D.        Seshachalam
Answer» B.        Agasthyamalai
2080.

Perpendicular rays are usually more heating than oblique rays. Therefore, south-facing slopes are warmer than north-facing slopes in the summer

A.  in the northern hemisphere
B.  in the southern hemisphere
C.  everywhere
D.  nowhere
Answer» B.  in the southern hemisphere
2081.

Which one of the following Biosphere Reserves is not a part of "Hotspot?

A. Dehang-Dibang     
B. Dibru- Saikhowa
C. Nilgiri    
D. Simlipal
Answer» E.
2082.

Consider the following statements : 1. Half the water vapour in the air in atmosphere lies below an altitude of 1000 m. 2. The amount of precipitable water in the atmosphere increases from the equator to the poles. 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» E.
2083.

Consider the following statements regarding Jet streams 1. They are also called Ross by waves. 2. They are usually found near tropo pause. 3. They travel from west to east in the northern hemisphere and from east to west in the southern hemisphere 4. They travel at very high velocity 5. They are usually sinuous in character Which of the above statements are correct?

A. 1, 2, 3 and 4 only
B. 1, 2, 3 and 5 only
C. 1, 2 and 4 only
D. 1, 2, 4 and 5 only
Answer» E.
2084.

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
2085.

Consider the followings  statements and select the correct answer using the code given below: 1. The River Spiti originates from the Kunzam Range 2. The River Spiti is a tributary of the Sutlej River. 3. Spiti is known as the 'fossil park of the world 4. Cultivation of medicinal plants, afforestation and ecotourism are the main economic activities of the inhabitants of Spiti Valley.

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.
2086.

Mumbai receives about 190 cm rainfall during the summer monsoon period while Pune barely 160 km away from Mumbai receives only 50 cm of rainfall. What could be the probable cause for this uneven distribution of rainfall? 1. Pune is away from the coast and the monsoon dries up by the time they reach this place. 2. Mumbai is at the coast while Pune is located in the 'rain shadow' area of the Western Ghats. Code:

A.  Only 1 is true
B.  Only 2 is true
C.  Both 1 and 2 are true
D.  Neither 1 nor 2 is true
Answer» C.  Both 1 and 2 are true
2087.

Gangetic Dolphin is not found in which of the following biosphere reserves?

A. Dehang Debang    
B. Dibru-Saikhowa
C. Panna   
D. Sundarban
Answer» B. Dibru-Saikhowa
2088.

Hot deserts like Sahara, Arabia, etc., receive very (negligible amount of rainfall. This is because they

A.  do not receive moisture-bearing wind from the oceans
B.  are the most rocky and barren areas of the Earth
C.  are located on the tropical high pressure belt of the atmosphere
D.  are not on the path of the monsoons
Answer» B.  are the most rocky and barren areas of the Earth
2089.

Which among the following phenomenas can occur when very warm and humid air is rising over a mass of a very cold air? 1. Calm weather 2. Snowfall 3. Storms and cyclonic storms 4. Intense rain and hail Select the correct answer using the codes given below

A.  1 and 2
B.  2 and 3
C.  3 and 4
D.  1 and 4
Answer» E.
2090.

Examine the following statements and select the correct answer using the codes given below: 1. Most of the tropical cyclones are circular in shape. 2. Most of the tropical cyclones originate on the western margins of the oceans. 3.? The release of latent heat helps in the rotation of tropical cyclone. 4. The highest velocity of winds is observed in the eye of the cyclone'.

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» B. 2, 3 and 4 only
2091.

A topographical map with scale 1 : 50000 indicates 1 cm to    [NDA/NA 2014-II]

A.  50 km
B.  500 km
C.  50 km
D.  5 km
Answer» C.  50 km
2092.

  Which one of the following crops is used for oil, alcohol, cosmetics, film, gum?

A.  Barley      
B.  Coconut
C.  Sugarcane       
D.  Maize
Answer» E.
2093.

Consider the following sentences in context of Cyclone 'Vardah'. 1. It was a Tropical cyclone which passed over the northern part of the Indian Ocean. 2. The name 'Vardair given by Myanmar. 3. Cyclone Vardah made landfall in Tamil Nadu and coastal Andhra Pradesh. Which of the above sentence(s) is/are true?

A.  1 and 3
B.  1 and 2     
C.  2 and 3
D.  1, 2 and 3   
Answer» B.  1 and 2     
2094.

  Consider the following statements and select the correct answer using the code given below: 1. Cash crops include those commercial crops which are grown for sale in a raw or semi-processed form to generate income for farmers. 2. Sugarcane, tobacco, fiber crops and oil seeds are included in the crops.

A.  Only 1 is correct      
B.  Only 2 is correct
C.  Both 1 and 2 are correct
D.  Neither 1 nor 2 is correct
Answer» D.  Neither 1 nor 2 is correct
2095.

Match list I with list II and select the correct answer using the code given below. List I (Characteristics)     List II (Atmospheric layer) A. Fall in temperature with height 1. Ionosphere B. Reflects radio waves    2. Troposphere C. Contains ozone gas     3. Exosphere D. Increase in temperature with height 4. Stratosphere

A. A-2       B-1      C-4       D-3
B. A-1       B-3      C-2       D-4
C. A-4       B-3      C-1       D-2
D. A-3       B-4      C-2       D-1
Answer» B. A-1       B-3      C-2       D-4
2096.

Which one of the following endangered species is not correctly matched?

A. (Endangered Species) (State) Wild Ass Gujarat
B. (Endangered Species) (State) White Bellied Eagle West Bengal
C. (Endangered Species) (State) White Tiger Karnataka
D. (Endangered Species) (State) White Winged Duck Nagaland
Answer» D. (Endangered Species) (State) White Winged Duck Nagaland
2097.

Which one of the following is not correctly matched with reference to Thornthwaite classification of climates?

A. Humidity zone A = Rainforest
B. Humidity zone B = Grassland
C. Humidity zone D = Steppe
D. Humidity zone E = Desert'
Answer» C. Humidity zone D = Steppe
2098.

Assertion (A): The thickness of the atmosphere is the maximum over the equator.????? Reason (R): High insulation and strong convection currents occur over the equator.

A. Both A are R are individually true and R is the correct explanation of A
B. Both A and R are individually true but R is not the correct explanation of A
C. A is true but R is false
D. A is fast false but R is true
Answer» B. Both A and R are individually true but R is not the correct explanation of A
2099.

In the world, India is the leading producer of:

A.  Cabbage     
B.  Cauliflower
C.  Onion     
D.  Potato
Answer» C.  Onion     
2100.

In which region do we receive maximum solar radiation at the earth's surface?

A. Tropical rainforests
B. Tropical hot deserts
C. Sub polar areas
D. Highlands of Central Asia
Answer» C. Sub polar areas