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1. What is the usual cause of a harmful increase in the nutrients in a freshwater lake? a. Global Warming b. Runoff of fertilizers and sewage c. Loss of biodiversity d. Seasonal variations in rainfall.
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1. What is the usual cause of a harmful increase in the nutrients in a freshwater lake?

a. Global Warming
b. Runoff of fertilizers and sewage
c. Loss of biodiversity
d. Seasonal variations in rainfall.

User Selvarathinam Vinoch
by
4.7k points

1 Answer

5 votes

Answer:

B

Step-by-step explanation:

User Davidgyoung
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5.2k points
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