If there were no natural greenhouse effect, Earth's average global temperature would be about
A)18°C.
B)-18°C.
C)100°C.
D)0°C.

Question

Quizplus · Accepted Answer

Without the natural greenhouse effect, Earth's average global temperature would be about -18°C, significantly colder than the current average of approximately 15°C. The greenhouse effect, caused by gases like carbon dioxide and water vapor trapping heat in the atmosphere, is essential for maintaining temperatures that support life as we know it.

If There Were No Natural Greenhouse Effect, Earth's Average Global