4 Theories of Origin of Earth - Part 1 - IAS Mains Optionals Mains Geography: Geomorphology-Origin and Evolution of the Earth's Crust

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4 Theories of Origin of Earth - Part 1

1. Gaseous Mass Theory - Kant 2. NebuLar Theory - Laplace 3. Planetesimal Theory Chamberlin & MOULTON 4. Tidal Theory Jeans and Jeffreys

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