Answer:
Light; Carbon dioxide; Temperature
Explanation:
Light; There would be no photosynthesis if light is not present. The rate of photosynthesis increases with light intensity up to the certain limit that plant needs for photosynthesis.
Carbon dioxide; Without carbon dioxide photosynthesis is not possible. The rate of photosynthesis increases with carbon dioxide level up to the certain limit that plant needs for photosynthesis.
Temperature; Too high temperature will denature the plant photosynthetic enzymes and photosynthesis will be too slow at low temperature
When TWO FERTILIZE CELLS fuse together and make as one cell. It would undergo to many process and multiplication of cell until it would produce an multi cellular organism that could also produce a fertilize cells and be use for another fertilization
The answer I believe is Rain
i would say [b]................