Question

Plants take in oxygen and give out carbon dioxide during respiration all the time. Why do we then say that plants supply oxygen to the air?

ANSWER

Answer 1

Answer:

Plants take in oxygen and give out carbon dioxide during respiration all the time. ... The amount of oxygen given out by a plant during photosynthesis far exceeds the amount of oxygen consumed by the plant and converted into carbon dioxide by respiration. Therefore, we say that plants supply oxygen to the air.

Answer 2

Answer:

Plants take in oxygen and give out carbondioxide during respiration but,during photosynthesis in the day time by the plants, releases much higher amount of oxygen in air so we say that plants supply oxygen to the air.

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