Dead Zones Have Been Documented in Many Areas

question 125

Multiple Choice

Dead zones have been documented in many areas. These dead zones are increasing in size each year. Which of the following would be one of the ways to decrease the size of these dead zones?

• A)Plant more crops so that more of the nitrogen in the fertilizers will be taken up.
• B)Decrease the volume of nitrogen used in agricultural areas near dead zones.
• C)Increase population sizes of cyanobacteria in coastal waters near dead zones.
• D)Increase populations of decomposers in coastal water areas near dead zones.