Which of the following is not required in photosynthesis?
1. chlorophyll
2. Light
3. CO2
4. O2
Which of the following statements does not justify the importance of photosynthesis?
1. | it is the primary source of all food on earth. |
2. | it is responsible for the release of oxygen into the atmosphere. |
3. | it is responsible for the water balance on earth. |
4. | use of energy from sunlight by plants doing photosynthesis is the basis of life on earth. |
Photosynthesis is a-
a. Biochemical process
b. Physical process
c. Chemical process
d. Physico-chemical process