Question

In which of the following processes $C{O}_2$ is involved?

• A. Photosynthesis
• B. Burning of fossil fuels
• C. Transpiration
• D. Respiration

Answer 1

Answer: (A), (B), (D)

The correct options are
A

Photosynthesis

B

Burning of fossil fuels

D

Respiration

Photosynthesis uses atmospheric carbon dioxide and fixes it to form glucose.
Burning of fossil fuels and respiration release carbon dioxide into the atmosphere.
On the other hand, transpiration is the process by which water vapour is lost from the aerial parts of a plant. It is a part of the water cycle.