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Composting is the controlled decomposition of organic materials. This printable guide to the basics of composting – and how it helps the environment – contains great activities for your unit on living a "greener" lifestyle.
U.S. Environmental Protection Agency
Environmental Protection AgencyThe Environmental Protection Agency leads the nation's environmental science, research, education and assessment efforts. The mission of EPA is to protect human health and the environment. Since 1970, EPA has been working for a cleaner, healthier environment for the American people.