The are where an oceanic plate descends into the upper mantle is called a subduction zone.
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the answer issssssssssssssssssss c
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just confused is this supposed to be a question cause Brainly is used for homework help.
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I saw this question on my recent test
B. Both were common governments for early river valley civilizations.
This was my answer and Got it right. Hope This helps you! :0) lol
1. geologic time
2. stratum
You could have just googled these...
