Question

Which part of a model showing the carbon cycle would best demonstrate the exchange of carbon between the atmosphere and the biosphere?(1 point)
Responses

Ocean currents circulating carbon-rich waters.
Ocean currents circulating carbon-rich waters.

The formation of fossil fuels underground over millions of years.
The formation of fossil fuels underground over millions of years.

Algae absorbing carbon dioxide during photosynthesis.
Algae absorbing carbon dioxide during photosynthesis.

Volcanic activity releasing gases into the atmosphere.

Answer 1

The part of a model showing the carbon cycle that would best demonstrate the exchange of carbon between the atmosphere and the biosphere is:

**Algae absorbing carbon dioxide during photosynthesis.**

This process directly illustrates how carbon dioxide from the atmosphere is taken up by living organisms (in this case, algae) in the biosphere.