Dead zones are areas in oceans or large bodies of water that have low oxygen levels, making it difficult for marine life to survive. These zones are often caused by excessive nutrient pollution from human activities, leading to algal blooms that deplete oxygen in the water.

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What Are Dead Zones

Question 59

Multiple Choice

What are dead zones?

A) They are columns of oxygen-depleted ocean water in which marine life cannot survive.
B) They refer to the vast net cages in ocean inlets or freshwater lakes that are used to cultivate seafood.
C) They refer to the pressure placed on water resources by human activities.
D) They refer to the areas that have been damaged because of heavy storms eroding the topsoil.
E) They refer to a specific area of land that is infertile.

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