If the earth had no atmosphere, there would be no greenhouse effect and its surface would be
A) very hot during both day and night.
B) very cold during both day and night.
C) very hot during the day and very cold at night.
D) Any of these choices, depending on the season.

Question

Quizplus · Accepted Answer

Without an atmosphere, there would be no greenhouse effect to trap heat, leading to extreme temperature variations: very hot during the day due to direct sunlight and very cold at night due to heat quickly escaping into space.

If the Earth Had No Atmosphere, There Would Be No