Homework Help: science

Posted by Anonymous on Friday, March 16, 2012 at 2:15pm.

Why is it sometimes difficult to make connections between poor water quality and health issues?

Among ocean industries, which are the THREE most important branches, economically?

compare and contrast persistent and non-persistent pollutants. Explain why persistent pollutants are more dangerous, and give examples of each type of pollutant.

Could you give me some help of info to help me with these questions?

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