EVERYDAY SCIENCE

Detailed explanation-1: -Photosynthesis is the process wherein green plants fix atmospheric carbondioxide in presence of sunlight into carbohydrates. So, carbondioxide released into the atmosphere by respiration is counterbalanced by its photosynthetic fixation.

Detailed explanation-2: -So, carbon dioxide released into the atmosphere by respiration is counterbalanced by its photosynthetic fixation. Sunlight drives splitting of water during light reactions; carbon dioxide is fixed during dark reactions of photosynthesis.

Detailed explanation-3: -Plants take carbon dioixide CO2 from atmosphere to perform photosynthesis and release out oxygen O2 which is inhaled by man and animals in turn giving out carbon dioxide which plant use for photosynthesis. Thus this maintains a nearly constant level of oxygen and carbon dioixide in the atmosphere.

Detailed explanation-4: -Answer 1: Plants produce carbon dioxide all the time because of respiration, but during the day (when there is light), they use CO2 for photosynthesis, and fix CO2 into other molecules, giving as end product O2 more than CO2.

Detailed explanation-5: -Several reviews of the literature have concluded that elevated concentrations of carbon dioxide, [CO2], generally reduce rates of respiration, primarily by a direct effect (c.f. Drake et al., 1999).