Some processes cycle carbon into the atmosphere, some processes remove carbon from the atmosphere and some cycle carbon both into and out of the atmosphere.

Question

Cycle carbon into the atmosphere Cycle carbon out of the atmosphere

Answer Choices:

(limestone formation, burning fossil fuels, respiration, photosynthesis, equilibrium with the ocean)

Answer 1

Cycle carbon into the atmosphere: burning fossil fuels

Cycle carbon out of the atmosphere: photosynthesis

Answer 2

is there any more?

Answer 3

Yes, there are a few more processes:

Cycle carbon into the atmosphere: respiration

Cycle carbon out of the atmosphere: limestone formation, equilibrium with the ocean