Geomorphology PYQs

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1. Prelims 2025Q25Geomorphology

   Which of the following are the evidences of the phenomenon of continental drift?

   I.The belt of ancient rocks from Brazil coast matches with those from Western Africa.

   II.The gold deposits of Ghana are derived from the Brazil plateau when the two continents lay side by side.

   III.The Gondwana system of sediments from India is known to have its counterparts in six different landmasses of the Southern Hemisphere.

   Select the correct answer using the code given below.

   aI and III onlybI and II onlycI, II and IIIdII and III only
2. Prelims 2025Q28Geomorphology

   Consider the following statements :

   Statement I :

   In the context of effect of water on rocks, chalk is known as a very permeable rock whereas clay is known as quite an impermeable or least permeable rock.

   Statement II :

   Chalk is porous and hence can absorb water.

   Statement III :

   Clay is not at all porous.

   Which one of the following is correct in respect of the above statements?

   aBoth Statement II and Statement III are correct and both of them explain Statement IbBoth Statement II and Statement III are correct but only one of them explains Statement IcOnly one of the Statements II and III is correct and that explains Statement IdNeither Statement II nor Statement III is correct
3. Prelims 2024Q3Geomorphology

   Consider the following :

   1.Pyroclastic debris

   2.Ash and dust

   3.Nitrogen compounds

   4.Sulphur compounds

   How many of the above are products of volcanic eruptions ?

   aOnly onebOnly twocOnly threedAll four
4. Prelims 2024Q7Geomorphology

   Consider the following statements :

   Statement-I :

   Rainfall is one of the reasons for weathering of rocks.

   Statement-II :

   Rain water contains carbon dioxide in solution.

   Statement-III :

   Rain water contains atmospheric oxygen.

   Which one of the following is correct in respect of the above statements ?

   aBoth Statement-II and Statement-III are correct and both of them explain Statement-IbBoth Statement-II and Statement-III are correct, but only one of them explains Statement-IcOnly one of the Statements II and III is correct and that explains Statement-IdNeither Statement-II nor Statement-III is correct
5. Prelims 2023Q65Geomorphology

   Consider the following statements :

   1.In a seismograph, P waves are recorded earlier than S waves.

   2.In P waves, the individual particles vibrate to and fro in the direction of wave propagation whereas in S waves, the particles vibrate up and down at right angles to the direction of wave propagation.

   Which of the statements given above is/are correct?

   a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
6. Prelims 2013Q18Geomorphology

   Consider the following:

   1.Electromagnetic radiation

   2.Geothermal energy

   3.Gravitational force

   4.Plate movements

   5.Rotation of the earth

   6.Revolution of the earth

   Which of the above are responsible for bringing dynamic changes on the surface of the earth?

   a1, 2, 3 and 4 onlyb1, 3, 5 and 6 onlyc2, 4, 5 and 6 onlyd1, 2, 3, 4, 5 and 6
7. Prelims 2009Q35Geomorphology

   In the structure of planet Earth, below the mantle, the core is mainly made up of which one of the following ?

   aAluminiumbChromiumcIrondSilicon
8. Prelims 2006Q87Geomorphology

   Consider the following statements :

   1.The Richter scale is a logarithmic scale and so an increase of 1 magnitude unit represents a factor of 10 times in amplitude.

   2.Each integer reading of the Richter scale has an energy 100 times that of the previous integer reading.

   Which of the statements given above is/are correct?

   a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
9. Prelims 2004Q87GeomorphologyAnswer disputed

   Consider the following geological phenomena:

   1.Development of a fault

   2.Movement along a fault

   3.Impact produced by a volcanic eruption

   4.Folding of rocks

   Which of the above cause earthquakes?

   a1, 2 and 3b2 and 4c1, 3 and 4d1, 2, 3 and 4
10. Prelims 2001Q55Geomorphology

    Consider the following statements:

    I.Most magmas are a combination of liquid, solid and gas.

    II.Water vapour and carbon dioxide are the principal gases dissolved in a magma.

    III.Basaltic magma is hotter than the silicic magma.

    IV.The magma solidified between sedimentary rocks in a horizontal position is known as dike.

    Which of these statements are correct?

    aI, II and IIIbII, III and IVcI and IVdI, II and IV
11. Prelims 2001Q59Geomorphology

    Consider the following statements regarding earthquakes:

    I.The intensity of an earthquake is measured on the Mercalli scale.

    II.The magnitude of an earthquake is a measure of energy released.

    III.Earthquake magnitudes are based on direct measurements of the amplitude of seismic waves.

    IV.In the Richter scale, each whole number demonstrates a hundred-fold increase in the amount of energy released.

    Which of these statements are correct?

    aI, II and IIIbII, III and IVcI and IVdI and III
12. Prelims 2001Q88Geomorphology

    Consider the following statements made about the sedimentary rocks:

    I.Sedimentary rocks are formed at Earth’s surface by the hydrological system.

    II.The formation of sedimentary rocks involves the weathering of pre-existing rocks.

    III.Sedimentary rocks contain fossils.

    IV.Sedimentary rocks typically occur in layers.

    Which of these statements are correct?

    aI and IIbI and IVcII, III and IVdI, II, III and IV
13. Prelims 2001Q93Geomorphology

    Volcanic eruptions do not occur in the

    aBaltic SeabBlack SeacCaribbean SeadCaspian Sea
14. Prelims 2001Q122Geomorphology

    Quartzite is metamorphosed from

    aLimestonebObsidiancSandstonedShale
15. Prelims 1997Q104Geomorphology

    Which one of the following is present in the largest amount in terms of per cent by mass in the earth’s crust?

    aSiliconbOxygencCarbondCalcium
16. Prelims 1995Q45Geomorphology

    The palaeomagnetic results obtained from India indicate that in the past, the Indian land mass has moved

    anorthwardbsouthwardceastwarddwestward
17. Prelims 1995Q67Geomorphology

    The Indian subcontinent was originally part of a huge land mass called

    aJurassic Land MassbAryavartacIndianadGondwana Continent