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The main minerals found inside crust are ____ and _____
The main minerals found inside crust are ____ and _____
Alumina and Gold
Gold and silver
Alumina and silica
None of the above
Answer: Alumina and silica
Long Answer:
Alumina and silica are the main minerals found inside earth's crust.
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Which of the following is a type of rock?
Igneous Rocks are also called _____ rocks.