Answer:
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.
Explanation:
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1)True
2)A
3)A
4)C
5)A
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Answer:
zone 3 I think let me know if I'm right
Explanation:
I'm taking the test right now
Answer:
I think it is A. Antibodies
Please tell me if I am wrong