Oxygen and carbon dioxide are replaced in nature through

Photosynthesis

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Respiration

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Both A and B

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None of these

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Solution

The correct option is C Both A and B
In photosynthesis, plants make food using carbon dioxide and sunlight, and produce oxygen in the process which is released into the environment. This oxygen is taken in by animals during respiration and carbon dioxide is given out. Plants also consume oxygen for respiration. So, there is a balance of oxygen and carbon dioxide in nature.

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Similar questions

Two gases found dissolved in natural water are

(a) oxygen and carbon dioxide

(b) hydrogen and oxygen

(d) chlorine and ammonia

Both carbon dioxide and oxygen enter the plant through these openings:

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