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Human activities often lead to eutrophication of freshwater systems. What are the impacts of eutrophication on lakes?

I. Increased nitrogen
II. Decreased algae growth
III. Increased oxygen levels

I only
I and II
II and III
I, II, and III

Respuesta :

swetsusie04

Answer:

this answer increased nitrogen decreased nitrogen, and increased oxygen levels

Explanation:

this should be the correct answer if not i'm so very sorry

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