4. Which of the following would be the best control sample for the study?
A)
A sample of wate...
4. Which of the following would be the best control sample for the study?
A)
A sample of water collected just downstream of the southern forest
(B) A sample of water collected just downstream of the housing development
C)A sample of water collected just downstream of the northern forest
D)A sample of distilled water
Answers: 3
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