Biology, 04.06.2020 13:26 Lydiac9243

4. Point-source pollution comes from a known source. Which amount is point-source pollution?
a. the difference between E and F
b. the difference between F and G
c. the difference between G and H
d. the difference between H and I

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4. Point-source pollution comes from a known source. Which amount is point-source pollution?
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