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United States University - Fall 2010 Session II | ||
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 | Essentials of Environmental Health (1st Edition) by Robert H. Friis Paperback, 416 Pages, Published 2006 ISBN-10: 0-7637-4762-9 / 0763747629 ISBN-13: 978-0-7637-4762-6 / 9780763747626 Environmental threats are occurring on a worldwide scale. Dramatic pictures of the devastating effects of natural disasters lead the nightly news. Stories of chemical spills and contaminated groundwater, deforestation and suburban sprawl, depleted fisheries and exploding human population, litter the | |