Question

The levels of oxygen and carbon dioxide are maintained constant in the atmosphere by

• A. Respiration by Animals and Plants
• B. Photosynthesis by Plants and Animals
• C. Processes of Respiration and Photosynthesis
• D. Processes of Respiration and Evaporation

Answer 1

The correct option is

D

Processes of Respiration and Photosynthesis

Photosynthesis is the process by which plants, some bacteria, and some protists use the energy from sunlight to produce glucose from carbon dioxide and water. The balance of oxygen and carbon dioxide is maintained in the atmosphere by the oxygen released by plants during photosynthesis and carbon dioxide released by humans, animals, and plants etc. during respiration.