Final answer:
The false statement relative to the Earth-atmosphere radiation system is that the Earth's surface emits only shortwave radiation.
Step-by-step explanation:
The false statement relative to the Earth-atmosphere radiation system is b) The Earth's surface emits only shortwave radiation. In reality, the Earth's surface emits both shortwave and longwave radiation. Shortwave radiation, mainly in the form of visible light, comes from the Sun and is absorbed by the Earth's surface. The Earth's surface then re-emits this energy as longwave radiation, mostly in the form of infrared.