Question

what is the reason of plants give oxygen??​

Answer 1

Answer:

they breathe in carbon dioxide and release oxygen during photosynthesis

Explanation:

they make food in leaves

Answer 2

Answer:

plants produce oxygen like a waste product of making sugar using sunlight carbon dioxide and water . is plant need energy but doesn't have sunlight, then it can burn the sugar that it make back when it had sunlight and doing so requires oxygen