Is the amount of carbon on Earth constant, does it increase, or does it decrease?

Question

*
1 point
The amount of Earth’s carbon increases.
The amount of Earth’s carbon decreases.
The amount of Earth’s carbon is constant.
The amount of Earth’s carbon cannot be determined.

Answer 1

The amount of Earth’s carbon is generally considered to be constant over long geological timescales. While carbon can move between different reservoirs (like the atmosphere, oceans, rocks, and living organisms) through processes such as the carbon cycle, the total amount of carbon on Earth does not increase or decrease significantly in the short term. Therefore, the correct answer is:

The amount of Earth’s carbon is constant.