Is all of Earth's carbon dioxide

Question

supply constantly being used by
organisms?

A. No, some is stored in Earths
only carbon sink, the
atmosphere.

B. Yes, and it is used up as soon
as it is formed.

C. Yes, and it briefly passes
○ through the atmosphere as it
cycles between organisms,

D. No, some is stored in Earth's
carbon sinks, such as the
oceans.

Answer 1

The correct answer is:

D. No, some is stored in Earth's carbon sinks, such as the oceans.

While carbon dioxide is actively utilized by organisms (primarily in the process of photosynthesis), a significant amount is also stored in various carbon sinks, including the oceans, soil, and geological formations. Thus, not all of it is constantly being used by organisms.