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blondinia [14]
3 years ago
7

HELP!!  Quick. Please?!    What determines the boundaries of a watershed?

Biology
2 answers:
lys-0071 [83]3 years ago
8 0
The answer is C I believe.
love history [14]3 years ago
7 0
I think it is C 

but if im wrong im sorry 

I hope this helps :3 
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Humans use many chemical substances for farming that consequently affect biodiversity. These compounds, which are rich in nitrog
posledela

Answer:

algal growth due to eutrophication

Explaination:

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Consider a closed ecosystem which contains only mosquitoes and frogs. the mosquitoes feed on the blood of the frogs, and the fro
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