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Physical Geography & Geomorphology

26 questions in Geography.

Asked in 2026, 2025, 2024, 2023, 2018, 2014, 2013, 2011, 2010, 2009, 2006, 2005, 2004, 2003, 2001, 1995

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.

  1. (a)I and III only
  2. (b)I and II only
  3. (c)I, II and III
  4. (d)II and III only
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Official answer(c) I, II and III

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?

  1. (a)Both Statement II and Statement III are correct and both of them explain Statement I
  2. (b)Both Statement II and Statement III are correct but only one of them explains Statement I
  3. (c)Only one of the Statements II and III is correct and that explains Statement I
  4. (d)Neither Statement II nor Statement III is correct
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Official answer(c) Only one of the Statements II and III is correct and that explains Statement I

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 ?

  1. (a)Both Statement-II and Statement-III are correct and both of them explain Statement-I
  2. (b)Both Statement-II and Statement-III are correct, but only one of them explains Statement-I
  3. (c)Only one of the Statements II and III is correct and that explains Statement-I
  4. (d)Neither Statement-II nor Statement-III is correct
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Official answer(a) Both Statement-II and Statement-III are correct and both of them explain Statement-I

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?

  1. (a)1 only
  2. (b)2 only
  3. (c)Both 1 and 2
  4. (d)Neither 1 nor 2
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Official answer(c) Both 1 and 2

With reference to agricultural soils, consider the following statements : 1. A high content of organic matter in soil drastically reduces its water holding capacity. 2. Soil does not play any role in the sulphur cycle. 3. Irrigation over a period of time can contribute to the salinization of some agricultural lands. Which of the statements given above is/are correct ?

  1. (a)1 and 2 only
  2. (b)3 only
  3. (c)1 and 3 only
  4. (d)1, 2 and 3
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Official answer(b) 3 only

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?

  1. (a)I, II and III
  2. (b)II, III and IV
  3. (c)I and IV
  4. (d)I and III
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Official answer(a) I, II and III

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?

  1. (a)I and II
  2. (b)I and IV
  3. (c)II, III and IV
  4. (d)I, II, III and IV
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Official answer(d) I, II, III and IV