Question

When the levels of greenhouse gases in Earth's atmosphere increase, which statement is true?


Earth's temperature increases because Hin increases.
Earth's temperature increases because Hout increases.
Earth's temperature increases because Hout decreases.
Earth's temperature increases because Hin increases and Hout decreases.

Answer 1

I think "Earth's temperature increases because H in increases and H out decreases".

Answer 2

but I am not sure.