Slide 1 Biology Form 4 Chapter 9 Lai Fook Chern Ling Sung Eng Wong Yueh Kai Title: Water Pollution and Eutrophication Group Member: Water pollution is any chemical, biological,…
1William P. CunninghamUniversity of MinnesotaMary Ann CunninghamVassar CollegeCopyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.*See…
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Slide 1Ch 22 Water Pollution Slide 2 Water pollution is any chemical, biological, or physical change in water quality that has a harmful effect on living organisms or makes…
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Slide 1 ∙Less than 1% of the earth's total water supply is suitable for drinking. ∙Dirty water kills 5,000 children per day (United Nations, 2006) and 3 million…