Question

where do plants get carbon dioxide to make their food?​

Answer 1

Answer:

For photosynthesis green plants take carbon dioxide from the air. The carbon dioxide enters the leaves of the plant through the stomata present on their surface. Each stomatal pore is surrounded by a pair of guard cells. The opening and closing of the pores of stomata is controlled by the guard cells only.

Explanation:

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Answer 2

Answer:

Humans

Explanation:

We inhale oxygen and Exhale Carbon dioxide so plants get carbon dioxide from humans