The largest pool of carbon in the carbon cycle is _____________.
A)the hydrosphere
B)in plants and animals
C)sedimentary rock
D)the ocean
E)the atmosphere

Question

Quizplus · Accepted Answer

Sedimentary rock contains large amounts of carbon in the form of fossil fuels, such as coal, oil, and natural gas, making it the largest pool of carbon in the carbon cycle. While the atmosphere and hydrosphere do contain carbon, they have much smaller amounts compared to sedimentary rock. Plants and animals also contain carbon, but their pool is much smaller and constantly cycling as they grow and decompose. The ocean also contains a significant amount of carbon, but again, it is smaller in comparison to sedimentary rock.

The Largest Pool of Carbon in the Carbon Cycle Is