Question

Which statement best summarizes the presence of greenhouse gases in the atmosphere?(1 point) Responses The atmosphere has recently changed and is mostly greenhouse gases, which have a large impact on climate. The atmosphere has recently changed and is mostly greenhouse gases, which have a large impact on climate. The atmosphere is mostly non-greenhouse gases, so the small amount of greenhouse gases have little impact on climate. The atmosphere is mostly non-greenhouse gases, so the small amount of greenhouse gases have little impact on climate. The atmosphere has recently changed and is mostly greenhouse gases, but they have little impact on climate. The atmosphere has recently changed and is mostly greenhouse gases, but they have little impact on climate. The atmosphere is mostly non-greenhouse gases, but the small amount of greenhouse gases have a large impact on climate.

Answer 1

The statement that best summarizes the presence of greenhouse gases in the atmosphere is: "The atmosphere is mostly non-greenhouse gases, but the small amount of greenhouse gases have a large impact on climate."

This acknowledges that while greenhouse gases make up a small fraction of the atmosphere, they are crucial in regulating the Earth's climate.