Question

All plants give out oxygen during night. Do you agree with this statement? Give 2 reasons.

Answer 1

In normal condition oxygen is only given out by the plants during the process of photosynthesis. As we all know photosynthesis can only take place in presence of sunlight at day time. So generally no plants can give out oxygen at night. But exceptions are there. If plants are photosynthesized in artificial light at night, they may emit oxygen as a part of the process.