UPSC CSE Prelims
Continental Drift Theory Previous Year Questions (PYQs)
Practice solved questions for Continental Drift Theory with detailed step-by-step solutions, key insights, and trend analysis for UPSC CSE PRELIMS.
Solved Previous Year Questions
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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.
Detailed Explanation:
All three statements are important geological evidences supporting Alfred Wegener’s Continental Drift Theory. Matching rock formations, similar mineral deposits, and identical sedimentary sequences across widely separated continents indicate that these landmasses were once part of a single supercontinent.
✅ Statement I is Correct: The ancient rock belts of Brazil and Western Africa match in age and structure, showing that the two continents were once connected.
✅ Statement II is Correct: Ghana's gold placer deposits are linked to gold-bearing source rocks found in Brazil, suggesting the continents were previously joined.
✅ Statement III is Correct: Gondwana sediments found in India have matching counterparts in Africa, South America, Antarctica, Australia, Madagascar, and the Falkland Islands.
Short Notes : Continental Drift Theory
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Proposed by Alfred Wegener in 1912.
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Continents were once part of Pangaea.
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Matching rock formations across continents support continental drift.
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Similar mineral deposits indicate former land connections.
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Gondwana sediments occur across several Southern Hemisphere continents.
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Geological evidence is one of the strongest proofs of continental drift.
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