Answer:
Earth's surface
Step-by-step explanation:
Most abundant green houses gases in earth's atmosphere are:
water vapour, carbon dioxide, nitrous oxide, methane, ozone and chlorofluoro carbon.
Green house gases are required to maintain earth's average temperature.
Without greenhouse gases, the average temperature of Earth's surface may fall to−18 °C.
Green houses gases trap the thermal infrared raditaion emitted from the earth's surface and keep the earth warm in order to sustain life.
So, greenhouse gases absorb radiation from the earth's surface.