B-Bioprocessing for forestry products.
Your answer is carbon dioxide because Chlorophyll can make food the plant can use from carbon dioxide, water, nutrients, and energy from sunlight. ... During the process of photosynthesis, plants release oxygen into the air.
I hope this helps
Given that,
The speed of a wave, v = 200 m/s
Wavelength, 
We need to find the frequency of this wave. The relation between wavelength, frequency and the speed is given by :

So, the frequency of this wave is 100 Hz.
Answer:
I think itś D
Sorry I don't take this course, but I try to help everyone