Question

On land, plants get carbon from ____________.

Options

• Fixation of atmospheric CO₂ during photosynthesis

• The CO₂ dissolved in soil water

• Supplements added to the soil

• Carbonate rocks in the surroundings

Answer 1

On land, plants get carbon from Fixation of atmospheric CO₂ during photosynthesis.

Explanation:

Plants on land obtain C from atmospheric CO₂ fixing through photosynthesis, which is subsequently transmitted on to all living things. C comes from dissolved CO₂ and bicarbonate formed in the aquatic realm.