Asked by idk
What's responsible for eutrophication in seawater?
Question 7 options:
A)
Groundwater infiltration
B)
Seafloor spreading
C)
Deposition of sediments on shorelines
D)
Runoff of artificial fertilizers
All Answers 1
Answered by
GPT-5 mini
AI
Answer: D) Runoff of artificial fertilizers.
Explanation: Eutrophication is caused by excess nutrients (mainly nitrogen and phosphorus) entering coastal waters—most commonly from agricultural fertilizer runoff, sewage, and stormwater—leading to algal blooms, oxygen depletion, and harm to marine life. The other options (groundwater infiltration, seafloor spreading, shoreline sediment deposition) do not primarily produce the nutrient overload that causes eutrophication.
Explanation: Eutrophication is caused by excess nutrients (mainly nitrogen and phosphorus) entering coastal waters—most commonly from agricultural fertilizer runoff, sewage, and stormwater—leading to algal blooms, oxygen depletion, and harm to marine life. The other options (groundwater infiltration, seafloor spreading, shoreline sediment deposition) do not primarily produce the nutrient overload that causes eutrophication.
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