The ozone layer is the answer!
B, metals, nonmentals all bond to be stable
Answer:
It slows down the entry of heat through the walls and ceiling.
Explanation:
Insulation is a poor conductor of heat.
Thus, it takes a long time for the heat of the sun's rays to penetrate to the inside of the building.
If the building was cool to start with, insulation will help it stay cool longer.