Question

Identify A-C

Answer 1

Here, A is Photosynthesis, B is Combustion and C is Respiration

Photosynthesis:

1. In the oxygen cycle, oxygen is released into the atmosphere by photosynthesis.
2. The process of fixing atmospheric carbon by trapping the sun's energy in the biological form in the presence of chlorophyll is called photosynthesis.
3. In this process, the light energy is converted to chemical energy.
4. In photosynthesis, the carbon dioxide along with water is converted to carbohydrate molecule, Glucose, with the release of oxygen in the atmosphere in the presence of chlorophyll and sunlight.

Respiration:

1. In the oxygen cycle, the utilization of oxygen occurs through respiration.
2. It is a process of intake of oxygen and release of carbon dioxide into the atmosphere.
3. The oxygen respired by living organisms is used for the oxidation of glucose and other substrates.
4. The oxidation of glucose releases carbon dioxide, energy, and water.

Combustion:

1. The process of burning organic fuels in the presence of oxygen to obtain energy is called combustion.