EVERYDAY SCIENCE

Detailed explanation-1: -The balance of oxygen and carbon dioxide is made due to respiration and photosynthesis.

Detailed explanation-2: -During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.

Detailed explanation-3: -Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide.

Detailed explanation-4: -While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration.

Detailed explanation-5: -Plants take up carbon dioxide from air and give out oxygen during photosynthesis. Animals take up oxygen and release carbon dioxide during respiration. This maintains a balance between oxygen and carbon dioxide in the atmosphere.