Question

Geologic Time Quick Check
5 of 55 of 5 Items
Question
How did reduced methane concentrations in the atmosphere affect Earth?(1 point)
Responses

Earth warmed.
Earth warmed.

Volcanic activity decreased.
Volcanic activity decreased.

Volcanic activity increased.
Volcanic activity increased.

Earth cooled.

Answer 1

Reduced methane concentrations in the atmosphere would most likely lead to Earth cooling. Methane is a potent greenhouse gas, and its decrease would result in less heat being trapped in the atmosphere, contributing to a overall cooling effect.

So, the correct response is:

**Earth cooled.**