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Wetlands (English)

Wetlands are among the wildest places on Earth. Used throughout the years as a valuable means of...Added June 22, 2010
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Force for Change: How Leadership Differs from Management (English)

John P. Kotter shows with compelling evidence what leadership really means today, why it is rarely...Added June 22, 2010
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States of Matter: Gases, Liquids, and Solids (English)

Without the different states of matter - the solids, liquids, and gases that make up our universe...Added June 22, 2010
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Earthquakes and Volcanoes (English)

Though the Earth's outermost shell is comprised of tectonic plates that are constantly shifting...Added June 22, 2010
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Rivers, Lakes, and Oceans (English)

Water covers more than 70 percent of Earth's surface, and all of it is connected in the...Added June 22, 2010
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Caves (English)

Here is a captivating new introduction to the world's most fascinating caves. ""Caves"" explores...Added June 22, 2010
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Tropical Forests (English)

Tropical forests are the most diverse and complex of the world's ecosystems. They are also among...Added June 22, 2010
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Atmosphere: Air Pollution and Its Effects (English)

Earth's atmosphere supports and protects all of its life, giving the planet its blue skies, mild...Added June 22, 2010
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Polar Regions: Human Impacts (English)

There is no place more remote than the Arctic and Antarctic, but their remoteness has not kept...Added June 22, 2010
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Water and Atmosphere: The Lifeblood of Natural Systems (English)

Without the crucial resources of water and atmosphere, life would not be possible on Earth....Added June 22, 2010