Question

Name a waste gas released by the plants (a) only during the day time, and (b) only during the night time.

Answer 1

Explanation:

a] oxygen

b] carbon-di-oxide

Answer 2

Answer:

A. Oxygen

B.Carbondioxide

Explanation:

In the day plants prepare their food by the process of photosynthesis for which they need carbon dioxide(Co2) as a raw material..so oxygen is exhaled as a waste gas..

In the night, they don't prepare their food as there is no sunlight due to which they take in oxygen and here Co2 acts as a waste gas...

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