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In 1950, Otto Schmidt in Russia and which German scientist revised the nebular hypothesis?
AHarold Jeffrey
BEdwin Hubble
CCarl Weizsacker
DJames Jeans
Answer & Solution
Correct answer: C. Carl Weizsacker
1. The sun was surrounded by a nebula of hydrogen and helium.
2. Carl Weizsacker worked in Germany.
3. Planets formed by accretion.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 2, The Origin and Evolution of the Earth._
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