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CRYSYS: All About Permafrost
Get the facts about this perennially frozen ground and the parts of Canada it covers.http://www.ec.gc.ca/water/en/nature/perma/e_perma.htm
Newton's Apple: Permafrost
Includes facts, vocabulary, and activities to help you understand this concept of frozen land.http://www.ktca.org/newtons/11/prmfrost.html
Permafrost
Find out about different kinds of permafrost, where they exist, and how they relate to the Alaskan pipeline.http://www.alyeska-pipe.com/Pipelinefacts/Permafrost.ht...
What is Permafrost?
Read up on this land that has been below 0 degrees Celsius for over two years straight.http://gsc.nrcan.gc.ca/permafrost/whatis_e.php
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