During 24 hours, there is a time, when plants neither give $O_{2}$ nor $C O_{2}$ . This is time of

Night

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Daylight

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Twilight

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None of the above

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Solution

The correct option is C Twilight
From the question, it is evident that twilight is the time when neither of the two processes that is, respiration or photosynthesis is being carried out. During twilight there is not enough sunlight, so photosynthesis may slow down or even cease, respiration too.

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During 24 hours, there is a time, when plants neither give O2 nor CO2. This is time of

The correct option is C TwilightFrom the question, it is evident that twilight is the time when neither of the two processes that is, respiration or photosynthesis is being carried out. During twilight there is not enough sunlight, so photosynthesis may slow down or even cease, respiration too.

During 24 hours, there is a time, when plants neither give $O_{2}$ nor $C O_{2}$ . This is time of

The correct option is C Twilight
From the question, it is evident that twilight is the time when neither of the two processes that is, respiration or photosynthesis is being carried out. During twilight there is not enough sunlight, so photosynthesis may slow down or even cease, respiration too.