Question

Oxygen cycle description for 200 words

Answer 1

Answer:

The oxygen cycle is the biogeochemical cycle that describes the movement of oxygen within and between its three main reservoirs; the atmosphere (air), the biosphere (living things), and the lithosphere (Earth’s crust). The main driving factor of the oxygen cycle is photosynthesis, which is responsible for the modern Earth’s atmosphere and life. The amount of oxygen in and around the earth is fixed. But this oxygen is fed again and again through the world’s living systems in a never-ending circle called the oxygen cycle.

Our needs are just part of this cycle. The cycle involves a continual exchange of gases between the air and animals and plants. In a process called respiration, animals and plants take oxygen from air and give back carbon dioxide. In a process called photosynthesis, plants take carbon dioxide from air and water and give back oxygen. Respiration and photosynthesis are effec­tively opposite processes.

Explanation:

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