The correct answer should be Carrying capacity
Carrying capacity is the the number of people, animals, and other life forms, that an ecosystem can sustain without starting to degrade, and all these upsets can destroy it because it can cause people and animals to migrate somewhere or they can destroy the carrying capacity of the already existing one.
Answer:
Limiting human use of nitrogen that is in the atmosphere.
Explanation:
I got two, but I could be wrong.