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Question
Which atmosphereic gas is used by plants to make their food by photosynthesis?
Options
Oxygen
Nitrogen
Carbon dioxide
Argon
MCQ
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Solution
Carbon dioxide
Explanation:
During photosynthesis, plants absorb carbon dioxide from the atmosphere through tiny pores in their leaves known as stomata. Plants use sunlight and chlorophyll to convert CO2 into glucose and release oxygen as a byproduct.
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