Igneous Rocks Are Overwhelmingly Composed of Silicate Minerals

question 49

Multiple Choice

Igneous rocks are overwhelmingly composed of silicate minerals. Why is this so?

• A) Silicates are very heavy.
• B) Silicates compose a huge amount of the earth's crust.
• C) Silicates are only found in igneous rocks.
• D) Silicates are very rare.

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