Quiz Question

greenspun.com : LUSENET : Introductory Geology, Oswego State : One Thread

In the earthquake quiz it says that the answer to the last question is B 30 fold increase in richter unit. But the notes state ten fold increase which is the correct answer??? I am assuming it's ten. Please answer me as soon as possible.

-- Melissa Schwob (missalater@yahoo.com), May 08, 2001

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