Question

all plants give O2 in day and CO2 at day do you agree if yes then give reason

Answer 1

Plants give out carbon dioxide not only at night but during the day too. It happens because of the process of respiration in which plants take in oxygen and give out carbon dioxide. As soon as the sun rises another process called photosynthesis starts, in which carbon dioxide is taken in and oxygen is given out.

Answer 2

yes because the requirement of O2 will be less whereas dat Co2 will be more for photosynthesis

at night co2 requirement will be less because photosynthesis doesnt occur at night