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A geologist faces down the idea that geological events only happen gradually. He shows that giant ice age floods ripped through the Pacific Northwest.
It is an educational content of CK-12 Foundation ( ...
Hipervinculo Biología
Constrasts gradualism and punctuated equilibrium.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
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