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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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drelog drelog
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8 years ago
What volcanic events formed Crater Lake, Oregon? When did they take place?
A) Landslides and volcanic mudflows dammed the Mazama River 500 years ago.
B) Caldera collapse followed major ash and pyroclastic-flow eruptions 6000 years ago.
C) The crater of a large, extinct cinder cone filled with water 5 million years ago.
D) A powerful explosion blew away the top of a stratovolcano 10 million years ago.
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Earth Science

Earth Science


Edition: 14th
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PulsaPulsa
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8 years ago
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drelog Author
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8 years ago
Exactly what I needed, exam is tomorrow!
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