BIOL:CONCEPT+INVEST.ETEXT
BIOL:CONCEPT+INVEST.ETEXT
5th Edition
ISBN: 9781264154173
Author: Hoefnagels
Publisher: MCG
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Chapter 40, Problem 3MCQ

What is the connection between agriculture in the midwestern United States and the Gulf of Mexico’s “dead zone”?

a. Pesticides from farmlands are killing ocean life.

b. Nutrient enrichment causes oxygen depletion in Gulf waters.

c. River sediments block out the light needed for photosynthesis in the Gulf.

d. Farmlands use up all of the nitrogen in the water, so the Gulf waters are starved for nutrients.

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