Question

If the earth did not have an atmosphere would its average surface temperature be higher or lower than what it is now?

Answer 1

it would have been higher as compared to whatever it is now because various layers constitue in forming atmosphere like ozone which doesn't lets unwanted warmth to the atmosphere

Answer 2

If the earth did not have an atmosphere, would its average surface temperature be higher or lower than what it is now?

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When there will be no atmosphere on surface of Earth, then there will be no green house effect which will led to decrease in the temperature. The decrease in temperature will result in making the environment cool and it will be difficult to survive by human.

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