What is happening to the carbon in the air around living things on the mountain? is carbon moving into the air, moving out of the air, or both?
a. carbon is only moving into the air; its not moving out of the air
b. carbon is moving into the air AND out of the air at the same time
c. carbon is not moving into the air; its only moving out of the air
d. with this information, there is no way to know for sure.