- United States Department of State
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Tropical forests are the most diverse and complex of the world's ecosystems. They are also among...Added June 22, 2010 - This item has been added.
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Earth's atmosphere supports and protects all of its life, giving the planet its blue skies, mild...Added June 22, 2010 - This item has been added.
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There is no place more remote than the Arctic and Antarctic, but their remoteness has not kept...Added June 22, 2010 - This item has been added.
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Without the crucial resources of water and atmosphere, life would not be possible on Earth....Added June 22, 2010 - This item has been added.
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Canyons chronicles the origins, history, and structure of the world's most breathtaking gorges,...Added June 22, 2010 - This item has been added.
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There are many different types of floods, ranging from slowly rising regional floods to dramatic...Added June 22, 2010 - This item has been added.
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A provocative look at the remarkable contributions of high-skillimmigrant entrepreneurs in...Added June 18, 2010 - This item has been added.
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This comprehensive course provides intermediate students (TOEFL test scores 380-480) with the...Added June 10, 2010 - This item has been added.
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Each year, 700,000 students from around the world come to the United States and Canada to study....Added June 10, 2010 - This item has been added.
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Longman Preparation Course for the TOEFL Test: iBT Listening, by Deborah Phillips, gives students...Added June 10, 2010