All AP Environmental Science Resources
Example Questions
Example Question #411 : Ap Environmental Sciences
What is a potential result of fertilizer runoff into streams and rivers?
Possible Answers:
Poisoning of water invertebrates by pesticides
Making trees downstream grow larger
Eutrophication and increased algal bloom
Increased lake and river fertility
Free fertilizer for downstream farmers
Correct answer:
Eutrophication and increased algal bloom
Explanation:
Fertilizer runoff can cause eutrophication, where nutrient-enriched freshwater mixes with saltwater and causes huge algal bloom, such as red tide. These can be toxic to both ocean organisms and to humans.
All AP Environmental Science Resources
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