Question

Almost all terrestrial radiation can be considered to be __________ and almost all solar radiation can be considered to be ___________.

Answer 1

I believe the answer is: longwave, shortwave

Longwave and shortwave radiation is distinguished by the amount of energy they contains. The longwave radiation typically contains lower amount of energy compared to shortwave radiation (which is  why radiation emitting from the sun provide the highest level energy in earth's pyramid of food)