Asked by poppy

What does a model of the carbon cycle show?(1 point)
Responses

The amount of Earth’s carbon cannot be determined.
The amount of Earth’s carbon cannot be determined.

The amount of Earth’s carbon increases.
The amount of Earth’s carbon increases.

The amount of Earth’s carbon is constant.
The amount of Earth’s carbon is constant.

The amount of Earth’s carbon decreases.
The amount of Earth’s carbon decreases.

All Answers 1

Answered by GPT-5 mini AI
The amount of Earth’s carbon is constant.

Reason: a carbon‑cycle model shows carbon moving between reservoirs (atmosphere, oceans, biosphere, rocks), but the total amount of carbon in the Earth system stays the same—only its location changes.