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.

1351.

The term 'Apogee' refers to which one of the following?

A.  A point in the orbit of the moon at which it is farthest from the earth.
B.  A point in the orbit of the moon at which it is nearest to the earth.
C.  Portion of surface of the moon opposite to the earth.
D.  Portion of surface of the moon facing the earth.
Answer» B.  A point in the orbit of the moon at which it is nearest to the earth.
1352.

Where is the ocean current called the 'Gulf Stream' found?

A.  Atlantic Ocean 
B.  Indian Ocean
C.  North Pacific Ocean
D.  South Pacific Ocean
Answer» B.  Indian Ocean
1353.

The direction of ocean currents is reversed with season in

A.  the Indian Ocean          
B.  the Pacific Ocean
C.  the Atlantic Ocean        
D.  no area on earth
Answer» B.  the Pacific Ocean
1354.

Consider the following statements and identify the right ones. I. Euphotic zone do not receive solar rays. II. Aphotic zone receives solar radiation.

A.   I only              
B.  II only
C.  Both                 
D.  None of the above
Answer» E.
1355.

What is the triangular landmass that forms at its mouth when a river splits into several branches just before entering the sea?

A.  Cape                  
B.  Island
C.  Estuary               
D.  Delta
Answer» E.
1356.

The greatest known ocean deep is

A.  Challenger deep                
B.   Richards's deep
C.  Java trench                      
D.   Yap trench
Answer» B.   Richards's deep
1357.

The abrupt change of gradient at the edge of the continental shift leads to the formation of an

A.  Continental rise 
B.  Continental slope
C.  Continental shelf           
D.  None of the above
Answer» B.  Continental slope
1358.

Which one of the following factors is responsible for the change in the regular direction of the ocean currents in the Indian Ocean?

A.  Indian Ocean is half an ocean
B.  Indian Ocean has monsoon drift
C.  Indian Ocean is a land-locked ocean
D.  Indian Ocean has greater variation in salinity
Answer» C.  Indian Ocean is a land-locked ocean
1359.

Granite and Basalt are the examples of which of the following?

A.  Sedimentary rock          
B.  Metamorphic rock         
C.  Igneous rock                 
D.  Calcareous rock
Answer» D.  Calcareous rock
1360.

Which one of the following is related to the origin of folded mountains?

A.  Accreting plate margin
B.  Consuming plate margin
C.  Conserving plate margin
D.  Infra plate zone
Answer» C.  Conserving plate margin
1361.

Sink hole is a phenomenon of-      [SSC 2016]

A.  Plain
B.  Desert
C.  Tundra
D.  Karst
Answer» E.
1362.

The sideways erosion -which widens the river valley called?                                   [SSC 2016]

A.  Lateral Corrosion    
B.  Vertical Corrosion
C.  Side Corrosion      
D.  Mean Corrosion
Answer» D.  Mean Corrosion
1363.

Which one of the following is not an old folded mountain?                          [UK-PSC 2016]

A.  Ural mountain              
B.  Aravalli mountain
C.  Andes mountain           
D.  Appalachian mountain
Answer» D.  Appalachian mountain
1364.

Which one of the following mountains is formed due to convergence of one oceanic and one continental plate?           [UGC-II (Geog) 2016]

A.  Urals
B.  Alps
C.  Andes
D.  Appalachians
Answer» D.  Appalachians
1365.

Peneplain is related to-             [MP-PSC-2017]

A.  wind
B.  underground water
C.  glacier
D.  river
Answer» D.  river
1366.

The unconsali dated rock material deposited by surface wash at the base of a clipff is called [UGC (Gcog) 2016]

A.  Alluvium
B.  Colluvium
C.  Morcines
D.  Silt
Answer» C.  Morcines
1367.

When following fissures in the rocks, its both parts slide in front and one part slides over the oilier, the resulting feature is

A.  Lateral fault                 
B.  Step fault                     
C.  Reverse fault                
D.  Normal fault
Answer» D.  Normal fault
1368.

Which one of the following is not a glacio-fluvial depositional feature?        [UGC (Geog) 2016]

A.  Drumlin
B.  Esker
C.  Horn
D.  Kame
Answer» C.  Horn
1369.

Which of the following forms of the land is not a result of 'faulting'?

A.  Rift Valley
B.  Ramp Valley
C.  Horst
D.  Chevron
Answer» E.
1370.

Which Indian National Park is famous for Rhinoceros population?    [UK-PSC (F) 2015]

A.  Kaziranga
B.  Jim Corbett
C.  Ranthambor
D.  Bannerghatta
Answer» B.  Jim Corbett
1371.

Which one of the following is the longest mountain range?                   [UP PCS (M) 2016]

A.  The Rocky
B.  The Alps
C.  The Himalayas
D.  The Andes
Answer» E.
1372.

On the earth, originally, there was only one huge landmass which is known is- [UP PCS (M) 2016]

A.  Panthalassa
B.  Pangaea
C.  Laurasia
D.  Gondwanaland
Answer» C.  Laurasia
1373.

\[{{90}^{o}}\]E Ridge lies in                  [UP-PCS 2010]

A.  Atlantic ocean
B.  Indian ocean
C.  Pacific ocean
D.  Mediterranean sea
Answer» C.  Pacific ocean
1374.

'Esker' is a geomorphic feature developed by [INDA/NA 2013-II]

A.  mechanical weathering
B.  river action
C.  glaciofluvial deposits
D.  aeolian deposits
Answer» D.  aeolian deposits
1375.

Quartzite is metamorphosed from    [NDA/NA 2014-II]

A.  limestone
B.  plutonic rock
C.  sandstone
D.  shale
Answer» D.  shale
1376.

Why is hydrolysis an effective form of chemical decomposition of bedrock in humid tropics'? [NDA/NA 2014-I] 1. Humid tropics experience high temperature and humidity. 2. There is high diurnal range in temperature, 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» C.  Both 1 and 2
1377.

What is the correct sequence from the smallest to the largest grain of the following types of classic rocks'? [NDA/NA 2017-I]     

A.  Shale, sandstone, conglomerate, siltstone                
B.  Shale, siltstone sandstone, conglomerate
C.  Conglomerate, sandstone, shale, siltstone
D.  Sandstone, siltstone, conglomerate, shale
Answer» D.  Sandstone, siltstone, conglomerate, shale
1378.

During volcanic eruption deposition of lava in anticlines and synclines of folded mountains accounts for formation of

A.  Phacolith                     
B.  Lopolith                       
C.  Batholith                     
D.  Lacolith           
Answer» B.  Lopolith                       
1379.

An up fold in rock is:       [NDA/NA 2015-II]

A.  graben
B.  horse
C.  anticline
D.  syncline
Answer» D.  syncline
1380.

Which one of the following describes the Lithosphere?                   [NDA/NA 2017-II]

A.  Upper and lower mantle
B.  Crust and upper mantle
C.  Crust and core
D.  Mantle and core
Answer» C.  Crust and core
1381.

DIRECTIONS: The/allowing question consist of two statements, Statement I and Statement JI. Examine these two statements carefully and select the answers to this question using the code given below:            [NDA/NA 2016-I] Statement I: Volcanic eruption is accompanied by earthquakes. Statement II: Volcanoes erupt water vapours and dust particles in the atmosphere.

A.  Both the Statements are individually true and Statement II is the correct explanation of Statement I.
B.  Both the Statements are individually true but Statement II is not the correct explanation of Statement. I.
C.  Statement I is true but Statement II is false.
D.  Statement I is false but Statement II is true.
Answer» C.  Statement I is true but Statement II is false.
1382.

Oil is found in petroliferous rock. Which one among the following structures demonstrates an ideal trap?                               [NDA 2013-II]

A.  Horizontal structure
B.  Fault structure
C.  Synclinal structure
D.  Anticlinal structure
Answer» C.  Synclinal structure
1383.

Which one among the following is not an igneous rock?                                         [NDA 2011-I]

A.  Granite
B.  Basalt
C.  Gabbro
D.  Gneiss
Answer» E.
1384.

Why do Fold Mountains have enormous thickness of sedimentary rocks?  [NDA 2011-I]

A.  Due to deposition of sediments in a valley for millions of years
B.  Due to accumulation of sediments in a geosyncline
C.  The plains were folded into mountains
D.  The sediments were folded into recumbent and nappe folds
Answer» C.  The plains were folded into mountains
1385.

The Vindhyan system of rocks is important for the production of                          [NDA 2011-I]

A.  precious stones and building materials
B.  iron ore and manganese
C.  bauxite and mica
D.  copper and uranium
Answer» B.  iron ore and manganese
1386.

Match the following                   [NDA 2008-II] List-I List-II A. Slate 1. Igneous rock B. Lignite 2. Metamorpric rock C. Bauxite 3. Non-ferrous mineral D. Granite 4. Sedimentary rock

A.             A-1       B-3       C-3       D-2
B.             A-2       B-4       C-3       D-1
C.             A-2       B-3       C-4       D-1
D.             A-1       B-4       C-3       D-2
Answer» C.             A-2       B-3       C-4       D-1
1387.

Match List-I with List-II and select the correct answer using the code given below the Lists           [CDS 2017-II] List-I (Weathering type) List-II (Land form/ Process) A. Chemical weathering 1. Till B. Mechanical weathering 2. Oxidation C. Glacial deposits 3. Plant roots D. Deposition by ground water 4. Stalactite

A.             A-2       B-3       C-1       D-4
B.             A-2       B-1       C-3       D-4
C.             A-4       B-1       C-3       D-2
D.             A-4       B-3       C-1       D-2
Answer» B.             A-2       B-1       C-3       D-4
1388.

The second highest peak of the world located in Himalayas is

A.  Nandadevi
B.  Dhoulagiri
C.  Kamet
D.  K2
Answer» E.
1389.

Which of the following pairs is most suitable for ascertaining the origin of the rocks?

A.  Colour and shape
B.  Size and weight
C.  Density and hardness
D.  Structure and composition
Answer» E.
1390.

Which region is called the roof of the world?

A.  Tibet
B.  Arctic region
C.  Siberia
D.  Mount Everest
Answer» B.  Arctic region
1391.

Africa's highest mountain peak Mt. Kilimanjaro lies in

A.  Kenya
B.  Malawi
C.  Tanzania
D.  Zambia
Answer» D.  Zambia
1392.

Which of the following is the highest mountain peak of the U.S.A.?                                          

A.  Albert
B.  Kilauea
C.  Mauna Lao
D.  McKinley
Answer» E.
1393.

Which one of the following mountains is not built during the Tertiary period?

A.  Rocky Mountain           
B.  Atlas Mountain
C.  Andes Mountain
D.  Aravalli Mountain
Answer» E.
1394.

The Black Mountains are located in                  

A.  Canada
B.  Norway
C.  Switzerland
D.  U.S.A.
Answer» E.
1395.

Mauna Loa is an active volcano of                   

A.  Alaska
B.  Hawaii              
C.  Italy
D.  Japan               
Answer» C.  Italy
1396.

Drakensberg is a mountain of                      

A.  Botswana
B.  Namibia
C.  South Africa
D.  Zambia             
Answer» D.  Zambia             
1397.

The world's most active volcano is                   

A.  Cotapaxi
B.  Fujiyama
C.  Kilauea
D.  Vesuvius
Answer» D.  Vesuvius
1398.

Telegraph plateau is a part of

A.  North Atlantic Ridge      
B.  South Atlantic Ridge
C.  Indian Ocean Ridge       
D.  South Pacific Ridge
Answer» B.  South Atlantic Ridge
1399.

DIRECTIONS: Consider the following statements and select the correct answer with the help of codes given below: Assertion [A]: Granite has larger crystals than basalt.   Reason [R]: Basalt has larger content of metallic minerals

A.  Both A and R are true and R Explains A          
B.  Both A and R are true but R does not explain
C.  A is true but R is false                             
D.  A is false but R is true                             
Answer» C.  A is true but R is false                             
1400.

Which of the statement is true.                      1. Coal is a sedimentary rock. 2. Basalt is an igneous rock.

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