Carbon is a major component of all organic compounds, including carbohydrates, lipids, proteins, and nucleic acids. Carbon dioxide is continually exchanged between the atmosphere and oceans. What geological process returns carbon to the atmosphere in the form of carbon dioxide?

Question

Responses
A respirationrespiration
B transpirationtranspiration
C volcanic activityvolcanic activity
D decomposition of marine sediments

Answer 1

C. volcanic activity