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

The formation of fossil fuels underground over millions of years.
The formation of fossil fuels underground over millions of years. - no response given

Ocean currents circulating carbon-rich waters.
Ocean currents circulating carbon-rich waters. - no response given

Algae absorbing carbon dioxide during photosynthesis.
Algae absorbing carbon dioxide during photosynthesis. - no response given

Volcanic activity releasing gases into the atmosphere.

1 answer

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

Algae absorbing carbon dioxide during photosynthesis.

This process directly illustrates how carbon is taken from the atmosphere and incorporated into living organisms, which is a key interaction between the atmosphere and the biosphere in the carbon cycle.