Answer:
2)a, 3)a, 4)b, 5)a
Explanation:
Ammonia is a nitrogen compound that is found in soil as natural fertilizer. Too much bacteria will cause a build up.
The oxygen cycle is closely related to the carbon cycle because it is a relationship between plants and animals
Many fertilizers have too much ammonia which will cause nitrogen run off after rains
Humans are causing too much carbon emissions that disrupt the carbon cycle.
