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Which of the following events separate geologic time into eras and periods? A. the number of earthquakes that occur at that time B. the appearance and disappearance of groups of…

Which of the following events separate geologic time into eras and periods? A. the number of earthquakes that occur at that time B. the appearance and disappearance of groups of…
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Which of the following events separate geologic time into eras and periods?

A. the number of earthquakes that occur at that time

B. the appearance and disappearance of groups of organisms

C. the appearance and disappearance of volcanoes

D. the creation of new ocean ridges

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User Patrick Wolf
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1 Answer

4 votes

Answer: b makes sense to me

Step-by-step explanation:

answered
User JdGhuman
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