Assertion :Earth has an atmosphere but the Moon does not. Reason: Gases in the atmosphere is completely escaped from the moon

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
As gravity of the Moon is very less then the Earth ( $\frac{1}{6}$ th of the Earth), so escape velocity of the Moon is much less when compared to the escape velocity of the Earth, so gases in the atmosphere is completely escaped from the Moon. And gravity depends on mass of planet, not its volume.

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