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Atmospheric properties
Characteristics of the mass of gases surrounding the earth such as composition, temperature, pressure, and humidity.
Subtopics:
Air temperature (10 items)
Atmospheric composition (11 items)
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Understanding our planet through chemistry [More info]
Site with a series of articles showing how chemists and geologists use analytical chemistry to determine the age of the Earth, determine Earth's history, predict volcanic eruptions, observe long-term atmospheric change and study pollution.
USGS guide to federal environmental laws and regulations [More info]
Guide to major U.S. environmental statutes and corresponding regulations on air quality, fish and wildlife conservation, cultural and historic resources, solid and hazardous substances, public lands, farmlands, and water resources.
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