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Home Q & A Board Science-Related Homework Help Physics
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einsteindude einsteindude
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Posts: 5058
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9 years ago
A catastrophic earthquake is one with a magnitude over 9.0. It has strong effects over areas thousands of miles in diameter. Catastrophic earthquakes are recorded about once every
A) month.
B) 2 years.
C) 20 years.
D) 500 years.
Textbook 
Conceptual Physical Science

Conceptual Physical Science


Edition: 6th
Authors:
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bSharpbSharp
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9 years ago
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#2
8 years ago
hi
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