Assertion : The earth without its atmosphere would be inhospitably cold.
All heat would escape in the absence of atmosphere .

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion
B. If both assertion and reason are true but reason is not the correct explanation of the assertion
C. If assertion is true but reason is false.
D. If the assertion and reason both are false

Answer

A

Explanation

In the absence of atmosphere, all the heat will escape from earth’s surface which will make earth in hospitably cold.