The "dead zones" in the Gulf of Mexico which are uninhabitable to marine organisms is mainly due to
A)global warming.
B)dumping of nuclear waste.
C)fertilizer runoff from agricultural land.
D)acid rain.

Question

Quizplus · Accepted Answer

The "dead zones" in the Gulf of Mexico are primarily caused by fertilizer runoff from agricultural land. This runoff contains high levels of nutrients, such as nitrogen and phosphorus, which lead to excessive algae growth. When the algae die and decompose, oxygen levels in the water decrease significantly, creating hypoxic conditions that are uninhabitable for most marine life.

The "Dead Zones" in the Gulf of Mexico Which Are