Question

this diagram shows a model of the carbon cycle. which numbered point in the diagram represents the movement of carbon between the biosphere and the geosphere? a. 1 b. 2 c. 3 d. 4

Explanation:

The biosphere includes all living organisms and the geosphere includes the solid parts of the Earth like soil and rocks. Decomposition (point 3) involves dead organisms in the biosphere being broken - down and becoming part of the soil in the geosphere, thus representing the movement of carbon between the biosphere and the geosphere.

Answer:

C. 3