Question

experiment to show that carbon di oxide is nessary for photosyntheis​

Answer 1

Answer:

Potassium hydroxide in the flask absorbs carbon dioxide; thus, due to the absence of CO2, the leaf fails to produce starch which proves that carbon dioxide is necessary for photosynthesis.

Explanation:

So we can conclude that the photosynthesis cannot be carried out without carbon dioxide. ... From this observation we conclude that photosynthesis (to make starch) takes place in the presence of carbon dioxide. So this shows that carbon dioxide is necessary for the process of photosynthesis to take place.