Question

a student reads the following statement. the presence of greenhouse gases in earths atmosphere is important to earths ability to support human life. how would earth be different without greenhouse gases in its atmosphere?
more heat from solar radiation would escape into space
more solar radiation would be reflected back into space.
more solar radiation would penetrate earths crust and mantle.
more heat from solar radiation would be stored in earths core.

Explanation:

Greenhouse gases trap heat from solar radiation. Without them, less heat would be retained. Solar radiation reflection is related to albedo (not greenhouse gases). Solar radiation penetration into crust/mantle or core storage isn't the main effect of greenhouse gases absence. The key is heat escape.

Answer:

More heat from solar radiation would escape into space.