Answer:
subsoil or horizon b I hope it will help you please follow me
Oxygen molecules diffuse fast because the main gas in a cell in Carbon Dioxide its like if it was 99.9 percent carbon that .1 percent is oxygen and carbon dioxide being what it is. Automatically overrides the amount of oxygen. Basically it is nonpolar
The answer is (1) !!
it is one direction, from sun to produces to consumer !!