1. Where is most freshwater on Earth Found?
The answer is D
Ice Caps and Glaciers
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2. How does algal growth caused by agricultural waste kill marine organisms?
The answer is A
by blocking sunlight and depleting oxygen.
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3. Which of the following is not a major source of freshwater pollution?
The answer is C
Treated sewage
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4. Which of the following does not reduce water pollution?
The answer is C
increasing the use of gasoline.
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