Discussion Forum : Air Around Us
Question -


The component of air used by green plants to make their food is:

Options:
A .   Sulphur dioxide
B .   Nitrogen
C .   Oxygen
D .    Carbon dioxide
Answer: Option D
:
D

Plants need carbon dioxide for photosynthesis through which they produce food for themselves. During photosynthesis, plants take in sunlight, water and carbon dioxide to produce starch and release oxygen as a byproduct.



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