Eutrophication is harmful to an ecosystem because —
higher levels of evaporation cause the water level to drop significantly
cold water rises to the top of the ocean and decreases nutrients
a new predator species is introduced and drastically decreases the prey population
the addition of excessive nutrients cause an increase in algal blooms
1 answer
The correct answer is: the addition of excessive nutrients cause an increase in algal blooms. This leads to a depletion of oxygen levels in the water due to the breakdown of dead algae, which can harm or kill many aquatic organisms in the ecosystem.