If this is a true or false question the answer is true because they have so many people that they have trouble growing food and will eventually lead to major problems
Passing genes to GENErations
The answer is A. melting. The change from gas to liquid to solid will release energy and the change from solid to liquid to gas will absorb energy. So the other three are releasing energy.
He will let CO2 out also when he poops he lets out CO2 too.
I think its photosynthesis
