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Earthquakes, volcanic eruptions, the alteration of rock layers by tectonic forces, and mass extinctions are known as _____.

a. beds
b. fossils
c. events
d. stratums

User Mortada
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earthquakes, volcanic eruptions, the alteration of rock layers by tectonic forces, and mass extinction are known as A. beds
User Dashsa
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These are known as events.
User Dododedodonl
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