7 Theories of Origin of Earth - Part - 2 - IAS Mains Optionals Mains Geography: Geomorphology-Origin and Evolution of the Earth's Crust
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7 Theories of Origin of Earth - Part - 2
1. Otto Schmidts Inter-Stellar Dust Cloud Hypothesis 2. Nova Hypothesis - Hoyle & Lyttleton 3. Binary Star Hypothesis - Russell 4. Big Bang Theory 5. Steady State Theory 6. Dust Gas Cloud Theory - Weizsacker 7. Electromagnetic Theory - Hannas Alfven
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