Devon's cat, Fluffy, is looking for a nice warm spot to lay out in the sun. Because of how the sun heats the earth, and how some heat radiates into the air, the cat laying on the ground, rather than high up in a tree branch, would keep the cat
cooler warmer
A B
The surface is heated by the Sun and some of that heat radiates back into the air. This makes the temperature higher near the surface than at higher altitudes.
close to surface
higher
near 
MORE
MORE
temperature
lower
higher
temperature
ground
up in a tree branch
up in a tree branch