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National Geographic Avalanches 101
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Speed of snow sliding down a slope reaches around 90 Km/hr during a rapid Avalanche.
Avalanches
An avalanche happens when a layer of snow becomes loose and slides downhill. Thousands of avalanches occur every winter in the mountains and are usually triggered by people. Avalanches are caused by these four factors: a steep slope, a snow cover, a weak layer in the snow cover and a trigger such as a snowboarders or skiers.
Unleash an Avalanche Interactive
National Geographic Encyclopedia
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Guide to Savage Earth by Call Number: PN 551.2 DAYISBN: 9780751330755This book provides a remarkable account of our planet's structure and the literally Earth-shattering process that shape it, often with savage consequences for human being and other living things.
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Avalanches by ISBN: 9781617839368Publication Date: 2013-08-01Life on Earth is never boring. What actually happens when Earth unleashes its fury? This title gives you an up-close look at the power of our planet.
Natural Disasters by ISBN: 9780778775768Publication Date: 2011-11-30Thirteen kinds of natural disasters, such as the earthquakes and tsunamis in Japan in 2011 and the Indian Ocean in 2004, are featured in this amazing book. The process and science of each disaster is described, from the action that triggered it to its dire consequences.
Avalanches by ISBN: 9781596793286Publication Date: 2006-09-01Discusses the nature, causes, and dangers of avalanches, avalanches of the past, and ways to survive.
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