Question

Which of the following contribute to the carbon cycle?

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

Answer 1

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

The correct options are
A

Photosynthesis

B

Burning of fossil fuel

D

Respiration

The given image depicts carbon cycle.
Photosynthesis is a biological process used by plants to prepare food with the help of sunlight, water and carbon dioxide.
Burning of fossil fuel (combustion) and respiration release carbon dioxide into the atmosphere. Hence, these processes are involved in carbon cycle.
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.