By photosynthesis and respiration. The plants utilise carbon dioxide during the photosynthesis. The carbon dioxide is reduced to glucose and oxygen is released by the photolysis of water as by product.

Any help appreciated. Thank you in advance. Questions and videos on water pollution, within environmental science After many years of graduate education, i decided to study medicine via synthesis of recent internet research. Q&a and videos that make learning easy. Math, history, chemistry, algebra, calculus, biology and more.

Q&a and videos that make learning easy. Math, history, chemistry, algebra, calculus, biology and more.