Question

Why do plants excrete more carbon dioxide at night than during the day

Answer 1

during the day co2is being used in photosynthesis as well as released in respiration so there is very less release of co2
but during night only respiration takes place so co2 released is more

Answer 2

Answer:

The plants excrete more ‘carbon dioxide’ in the night because photosynthesis does not take place during the night.  

Explanation:

The plants give our oxygen and take in carbon dioxide because they can prepare food by the process of ‘photosynthesis’ by using ‘carbon dioxide and water’.

The carbon dioxide formed as a result of ‘respiration’ is also utilized in the food preparation process. Whereas in the night there is no food preparation and therefore the carbon dioxide is let out.