Infrared radiation - Greenhouse gases in the atmosphere absorb most of the earth's emitted infrared radiation which heats the lower atmosphere
F = G Mm/r²
mg = G Mm/r²
g = GM/r²
At centre of earth, r=0
g = GM/0
g =0
Answer:A generator or a solar panel are 2 examples
Answer:
A substance made of two or more types of atoms
Explanation:
