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Major water pollution problems - PowerPoint PPT Presentation

Chapter 20

Chapter 20

Water Pollution. Chapter 20. http://midwayfilm.com/. Core Case Study: Lake Washington. Sewage dumped into Lake Washington 1955: Edmondson discovered cyanobacteria in the lake Role of phosphorus Public pressure led to cleanup of the lake New pollution challenges.

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793 views • 57 slides
Water Pollution

Water Pollution

Water Pollution Asim Zia Introduction to Environmental Issues EnvS 001, Spring 2007 Department of Environmental Studies San Jose State University Chapter 21 Overview Questions What pollutes water, where do these pollutants come from, and what effects do they have?

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5.33k views • 50 slides
Water Pollution

Water Pollution

Water Pollution. Chapter 20. Water pollution causes illness and death in humans and other species and disrupts ecosystems. The chief sources of water pollution are: agricultural activities industrial facilities mining but growth in population and resource use make it increasingly worse. .

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1.09k views • 37 slides
Water Pollution Chapter 20

Water Pollution Chapter 20

Water Pollution Chapter 20. Dave Sang Nora Tibbetts. 20-1 What are the Causes and Effects of Water Pollution?. Causes of Water Pollution. Water pollution - any chemical, biological, or physical change in water quality that harms living organisms or makes water unsuitable for desired uses.

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825 views • 35 slides
CH. 20: WATER POLLUTION

CH. 20: WATER POLLUTION

CH. 20: WATER POLLUTION. By: Alexa Tsaganos and Cricket Slattery. Core Case Study: Lake Washington. 20.1 What are the Causes and Efects of Water Pollution?. Key terms: Water pollution, Point sources, non point sources. 20.1 Key Focus.

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309 views • 29 slides
Chapter 20

Chapter 20

Chapter 20 . By: Kate Crowe . Section 20-1. WHAT ARE THE CAUSES AND EFFECTS OF WATER POLLUTION?. Water pollution comes from point and nonpoint sources.

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335 views • 23 slides
Chapter 21

Chapter 21

Chapter 21. Jesus Ramirez Jake McCleery. eutrophication.

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216 views • 13 slides

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