Question

The Balance Of Carbon Dioxide And Oxygen In The Atmosphere Is Maintained By ______.

• A. C₄ Plants
• B. Photolysis
• C. Photorespiration
• D. Both photosynthesis and respiration

Answer 1

The correct option is D

Both photosynthesis and respiration

Explanation for the correct option:

Option(D):Both Photosynthesis And Respiration

• The balance of oxygen and carbon dioxide is maintained in the atmosphere both by plants and animals.
• Plants release oxygen into the atmosphere during photosynthesis and carbon dioxide is released into the atmosphere during respiration by humans , animals, birds, etc.

Explanation for the incorrect option:

Option a) C₄ Plants

• These are the type of plants that uses a specific photosynthesis mechanism (C₄ photosynthesis) in order to avoid photorespiration
• This is incorrect

Option b) Photolysis

• It concerns breaking down a substance in presence of light.
• No role in balancing oxygen and carbon dioxide.
• This is incorrect.

Option c) Photorespiration

• Instead of taking in carbon dioxide and releasing oxygen when plants take in oxygen and give out carbon dioxide.
• This is photorespiration.
• This option is incorrect.

Hence The Balance Of Carbon Dioxide And Oxygen In The Atmosphere Is Maintained By Photosynthesis And Respiration.