Three parts of nitrogen plus five parts of phosphorous gives you a total of 8 parts (3+5=8). Nitrogen makes up only three of those eight parts, or 3/8. The correct answer is B) 3/8.
The answer to your first question is the land becomes a lot dryer, so plants die. The answer to your second question is deposition.
Answer:
commensalism
Explanation:
One organism is benefited while the other is not harmed or benefited.