Question

If you exclude carbon stored in rock, which sphere holds the most carbon?

Answer 1

Ocean

Explanation:

The ocean plays a critical role in carbon storage ,as it holds about 50 times more carbon than the atmosphere

Answer 2

• lithosphere and mantle: contains about one hundred million GtC. This is by far the largest reservoir. The carbon dioxide is stored in the interior of the Earth in the form of carbonate rocks, such as limestone, dolomites, and chalk.
• Carbon is stored on our planet in the following major sinks (1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere; (3) as organic matter in soils; (4) in the lithosphere as fossil fuels and sedimentary rock deposits such as limestone, dolomite.

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