What do you understand by the theory of continental drift? Discuss the prominent evidences in its support.[100 Words] [5 Marks] [2013]

Continental Drift Theory:
Proposed by Alfred Wegener (1912), it suggests that continents were once joined in a supercontinent called Pangaea, which later split and drifted apart.

Evidences:

  • Fit of Continents: Coastlines of South America and Africa fit like a jigsaw.
  • Fossil Evidence: Identical fossils (e.g., Mesosaurus) found in Brazil and South Africa.
  • Rock Formations: Similar rock types and mountain chains (e.g., Appalachians and Scottish Highlands).
  • Glacial Evidence: Glacial deposits in present-day tropical areas like India and Africa.

Conclusion:
Though initially unaccepted, it laid the foundation for Plate Tectonics Theory.