1. The stabilization of the atmosphere took place around 600 million years back. |
2. The rate of solar constant is 1.968 calories per cm per minute. |
3. The solar constant is measured at the outer limit of the atmosphere. |
A) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 1 and 3 are correct
D) 2 and 3 are correct
Correct Answer: A
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