Answer: Decrease, i'm sorry i don't know the other one
Explanation:
Violet and blue have the high frequencies (thus energy) of visible light. Red will be the least energy but lowest energy. And remember, chlorophyll is green because it reflects green into our eyes. Green is therefore not absorbed, so not used for photosynthesis.
The answer is a. Nitrogen
B is the answer I strongly believe
What do you mean? that is not can be answered