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Debora [2.8K]
3 years ago
15

The earth is composed of three different chemical layers: core, mantle, and crust. This layering effect is called _____.

Biology
1 answer:
almond37 [142]3 years ago
8 0

Answer:

i believe that the answer is sedimentation

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The big bang theory of the formation and expansion of the universe is supported by the observed ___
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