The Terrestrial Planet Cores Contain Mostly Metal Because

question 78

Multiple Choice

The terrestrial planet cores contain mostly metal because

• A)the entire planets are made mostly of metal.
• B)metals condensed first in the solar nebula and the rocks then accreted around them.
• C)metals sank to the center during a time when the interiors were molten throughout.
• D)radioactivity created metals in the core from the decay of uranium.
• E)convection carried the metals to the core.

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