Question

Why do plants give out oxygen in day time and carbon dioxide at night?

Answer 1

Answer:

Plants respire throughout the day, while photosynthesis takes place only in the presence of sunlight. ... At night, when there is no photosynthesis, no oxygen is released. Also, CO2 produced during respiration is not used by the plants. So, it is released in the air.

Answer 2

Answer:

Plants respire throughout the day, while photosynthesis takes place only in the presence of sunlight. ... At night, when there is no photosynthesis, no oxygen is released. Also, CO2 produced during respiration is not used by the plants. So, it is released in the air.

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