which is the largest layer of the earth and mainly made of oxygen,silicon,and magnesium?
a.)crust
b.)inner core
c.)mantle
d.)outer core
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which is the largest layer of the earth and mainly made of oxygen,silicon,and magnesium?
a.)crust
b.)inner core
c.)mantle
d.)outer core
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Answer:
A. Crust
Explanation:
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