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snow_lady [41]
3 years ago
11

For the Earth to become layered like it is today, it must have been

Biology
1 answer:
Advocard [28]3 years ago
8 0

Answer:

very old (i hope this helps)

Explanation:

The stratification of Earth into its geologic layers was brought about by the formation of the Earth's iron core. The iron core was generated by a combination of radioactive decay and gravitation, which raised the temperature enough for molten iron to form.

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