Question

Who proved that oxygen evolved in photosynthesis comes from water?

Answer 1

Mayer Calvin Ruben, Hassid, and Kamen Blackman proved that oxygen is evolved in photosynthesis comes from water.this is a redox reaction in which oxygen is oxidised and carbon di oxide is reduced.and the oxidation of water is called as photolysis.They have proved it scientifically.

By performing few experiments, beore the learned people in science.

Answer 2

Kamen Blackman, Hassid and Mayer Calvin Ruben proved that  oxygen evolved in photosynthesis comes from water.