UPSC Previous Year Question | Prelims GS | 2025

Which of the following are the evidences of the phenomenon of continental drift? I. The belt of ancient rocks from the Brazil coast matches with the ancient rocks of the Western Africa coast. 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. I and III only
  2. I and II only
  3. I, II and III
  4. II and III only

Answer

Correct Answer

I, II and III

Explanation

All three are classic pieces of evidence cited by Alfred Wegener and later geologists in support of continental drift: matching ancient rock belts across the Atlantic (I), matching gold deposits between Ghana and the Brazilian plateau (II), and the correspondence of Gondwana sediments across the fragments of the former Gondwana supercontinent (III).

Topics: continental drift, geography, geology