Question

In the carbon cycle, carbonate rocks would be MOST likely to be part of which of Earth's "spheres"?

A. biosphere
B. geosphere
C. cryosphere
D. hydrosphere

Answer 1

The correct answer is B geosphere

just took this test.

key word is ROCK :P

Answer 2

It is A because carbon enters the biotic world through the action of autotrophs. Carbon returns to the atmosphere and water.