Which statement best describes a human influence on the biochemical cycles

The increased Eutrophication is the best statement that describes the human influence on the biochemical cycles.

Explanation:

The term Eutrophication is defined as the process by which a body of water becomes dissolved in enriched nutrients.This will result in the growth of aquatic plant life resulting in the depletion of dissolved oxygen.So human growth will take place here. After the desolvation of water human growth and influence will take place here. Eutrophication has been increased by high levels of nitrogen and phosphorous.                            

Ithink it’s around 500 million or something. kinda scary honestly but that’s just my opinion.