Question

explain with activity that co2 and water are necessary for photosynthesis. class7 ​

Answer 1

Answer:

The leaf from the plant (which was inside the other bell jar without potassium hydroxide and so having carbon dioxide in it) turns blue-black on adding iodine solution showing that starch is present in this leaf. ... So this shows that carbon dioxide is necessary for the process of photosynthesis to take place.

Explanation:

I hope get your ans mark me in brainly thanks

Answer 2

Explanation:

aim to prove that co2 and water are necessary for photosynthesis

apparatus - belljar, a living animal,plant

procedure - take a living animal like a cockroach but put in a bell jar the cockroach does not lives now put a small plant the cockroach lives

this proves that co2 and water is necessary for photosynthesis