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Home Q & A Board Science-Related Homework Help Physics
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doit_the_clown doit_the_clown
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7 years ago
What is believed to be the composition of the Earth's core?
A)   About 80% iron and 20% lighter elements
B)   About ¼ iron and ¾ lighter elements
C)   About ½ iron and ½ lighter elements
D)   Essentially pure iron
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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hyponoticahyponotica
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7 years ago
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7 years ago
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Transonic
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