Question

what is defined as \humans causing the feeding levels in an aquatic ecosystem to change in a negative way\?
water treatment
bioaccumulation
biodiversity
cultural eutrophication

Explanation:

Water treatment is for purifying water, bioaccumulation is the build - up of substances in organisms, biodiversity is the variety of life. Cultural eutrophication occurs when human activities, like adding excessive nutrients, cause negative changes in aquatic ecosystem feeding levels.

Answer:

Cultural eutrophication