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The moon is believed to have formed from a giant impact, the big splat, about how many billion years ago?
A1.0
B4.44
C13.7
D2.5
Answer & Solution
Correct answer: B. 4.44
1. Blasted material orbited the earth.
2. The moon formed about 4.44 billion years ago.
3. Darwin's dumb-bell idea is no longer accepted.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 2, The Origin and Evolution of the Earth._
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