Scientists find dense rock on Earth's surface that is made of magnesium and smaller amounts of silicon. What layer of Earth migh t the rock help scientists study?
2 answers:
Oh the answer is the Mantle, You can look at a chart and easily find the answer if you don't believe me. But here is a reasoning; Magnesium as well as Aluminum are located within the Mantle.
From the crust or mantle
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