The Largest Reservoir for Carbon Is

Question

The largest reservoir for carbon is
A) the atmosphere.
B) ocean biomass.
C) carbonate rocks and subsurface carbon.
D) wetlands.
E) fossil fuels.

Accepted Answer

Carbonate rocks and subsurface carbon are the largest reservoir for carbon, storing over 60,000 times more carbon than the atmosphere. The other options listed are significant reservoirs as well, but do not contain as much carbon as carbonate rocks and subsurface carbon.