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.