Assertion If earth did not have atmosphere, its average surface temperature would be lower than what is now. Reason Green house effect of the atmosphere would be absent if earth did not have atmosphere.

Question

Assertion If earth did not have atmosphere, its average surface temperature would be lower than what is now. Reason Green house effect of the atmosphere would be absent if earth did not have atmosphere. (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 Assertion is false but the Reason is true

Tardigrade Admin · Accepted Answer

Earth is heated by sun's infrared radiation. The earth also emits radiation most in infrared region. These radiations are reflected back by heavy gases like CO 2 is atmosphere. These back radiation keep the earth's surface warm at night. This phenomenon is called green house effect. When the atmosphere were absent then temperature of earth falls.

Q. Assertion If earth did not have atmosphere, its average surface temperature would be lower than what is now. Reason Green house effect of the atmosphere would be absent if earth did not have atmosphere.

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If Assertion is false but the Reason is true

Q. Assertion If earth did not have atmosphere, its average surface temperature would be lower than what is now.
Reason Green house effect of the atmosphere would be absent if earth did not have atmosphere.