Question

how you will prove that co2 is essential for photosynthesis

Answer 1

It is because plants dont absorb any other gas than co2 where photosynthesis takes place only with carbon dioxide or else we would die if plants would have absorbed oxygen.

Answer 2

the co2 is very important for the plant for making the food for the photosynthesis as without co2 and o2 are very very important for the plant as without that the plant can make the food and will  die.  the plant will die without the approprate value the plant will die ann can't survive............................
***********************************hope it will helpu***********************************************
plz make it the best