... in Washington, D.C. Lake Erie was declared dead and the 1969 oil spill off scene in Santa Barbara, California, contributed to the public outrage and the call for immediate reforms. Water pollution is the introduction into fresh or ocean waters of chemical, physical, or biological material that degrades the quality of the water and affects the organisms living in it. Water provides ... the drafters of the original Clean Water Act largely overlooked non-point sources of water pollution. Major sources of non-point pollution include runoff from streets and lawns, erosion from disturbed hill...

• Word Count: 1359
• Approx Pages: 5
• Grade Level: Undergraduate

... . A pesticide is a chemical that kills animals and plants unwanted by humans. The United States uses approximately 500,000 tons of these chemicals each year. Pesticides are considered a form of water pollution. A good portion of these pesticides may be hazardous to the environment, having effects on birds, fish, and other wildlife. These pesticides have been known to make their way through ecosystems ... in water so they are dissolved in oil to make a solution. Substances like this are termed hydrophobic. These molecules are non-polar and water molecules are not attracted to these types ...

• Word Count: 1281
• Approx Pages: 5
• Grade Level: High School