Throughout the day there are changes in carbon dioxide concentration. The peak is at 8 AM at 1000 ppm and The lowest is at 4 PM at approximately 700 ppm. The earlier it is, the more concentration of carbon dioxide and in the evening it is there is less concentration of carbon dioxide . Hope this helps :)
Answer: F stands for feather R stands for red and W stands for white.
Explanation:
True
It’s pretty obvious and i’ve done this before
