The __________ of the Earth is a spherical mass composed largely of metallic iron, with smaller amounts of nickel and other elements.
Correct Answer:
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Q11: Colloids that consist of microparticles or nanoparticles
Q12: _ are atoms with the same atomic
Q13: _ form when one or more kinds
Q14: The term _ is specifically applied to
Q15: _ are long, chainlike polymers made of
Q17: The thick shell of dense, rocky matter
Q18: Above the mantle lies the thinnest and
Q19: Within the upper mantle, from 350 to
Q20: This hard outer layer, which includes the
Q21: A mineral's tendency to break in preferred
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