Which of the following DOES NOT add carbon to the atmosphere?

Question

a. volcanic eruptions

b. respiration

c. weathering of limestone

d. subduction

e. fossil fuel burning

Answer 1

B Respiration

"Biology also plays an important role in the movement of carbon in and out of the land and ocean through the processes of photosynthesis and respiration."

http://earthobservatory.nasa.gov/Library...

Answer 2

d. subduction. Subduction is a geological process where subterranean plates move over each other

Answer 3

D, subduction