viernes, 6 de noviembre de 2015

Pollution in the USA

Pollution has always existed. Leather tanning, mining, coal and wood stoves are all examples of sources of pollution. On this page, you find de history of air, hazardous waste, and water pollution in the United States of America.

Follow this timeline and make a comparison about pollution in our country:

What kind of pollution we have to support?
  •  Air pollution
  • Hazardous waste pollution
  • Water pollution
  • Land pollution
  • Chemical pollution

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