Question

Which one of the following is the greatest carbon reservoir?

Answer choices:
(A) Hydrosphere
(B) Geosphere
(C) Atmosphere
(D) Biosphere

Answer 1

I believe the correct answer would be A) Hydrosphere.

The Japan Agency for Marine-Earth Science and Technology states, “The largest reservoir of the Earth's carbon is located in the deep-ocean, with 37,000 billion tons of carbon stored.” It’s often even called the “carbon sink” because it absorbs significantly more carbon than it sends out.

Hope this was helpful & accurate!