To which does "dead zone" refer?
A)Terrestrial areas in which excessive nitrogen fertilizer has essentially burned the soil,preventing plants and microorganisms from living there.
B)Oligotrophic areas in water bodies that cannot support life due to lack of nutrients.
C)An ecosystem that was cleared of all vegetation for slash and burn agriculture.
D)Hypoxic areas in water bodies that limit marine and aquatic life.

Question

Quizplus · Accepted Answer

"Dead zone" refers to hypoxic areas in water bodies that limit marine and aquatic life. These areas are caused by excessive human activities, such as nutrient pollution from agriculture or sewage, leading to excessive growth of phytoplankton that deplete the oxygen in the water. This lack of oxygen makes it difficult for fish and other aquatic organisms to survive, leading to a "dead zone."

To Which Does "Dead Zone" Refer