eutrophication is often the result of _______.\na. increases in animal populations\nb. lack of oxygen in the…

eutrophication is often the result of _______.\na. increases in animal populations\nb. lack of oxygen in the water\nc. fertilizer runoff entering aquatic ecosystems\nd. a decrease in phytoplankton populations\n\nplease select the best answer from the choices provided\n\na\nb\nc\nd

eutrophication is often the result of _______.\na. increases in animal populations\nb. lack of oxygen in the water\nc. fertilizer runoff entering aquatic ecosystems\nd. a decrease in phytoplankton populations\n\nplease select the best answer from the choices provided\n\na\nb\nc\nd

Answer

Brief Explanations:

Eutrophication is the enrichment of aquatic ecosystems with nutrients, leading to excessive algal growth. Fertilizers contain high levels of nitrogen and phosphorus; when they run off into water bodies, they trigger this nutrient overload, causing eutrophication. The other options are either effects of eutrophication (like lack of oxygen) or unrelated factors.

Answer:

C. fertilizer runoff entering aquatic ecosystems