Which of the Following Igneous Rocks Is Thought to Be

question 26

Multiple Choice

Which of the following igneous rocks is thought to be common in the Earth's mantle but rare in the crust?

• A)pumice
• B)granite
• C)pegmatite
• D)peridotite

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Definitions:

Monetary Bailouts

Financial assistance provided to a failing business or economy to save it from collapse.

Laissez-Faire Approach

An economic principle advocating minimal government intervention in the marketplace and allowing private sector freedom in economic decisions.

Natural Selection

The biologically based principle that environmental pressures allow certain beneficial traits to be passed on to future generations.

Evolution

The biological process by which genetic mutations are selected for, and against, through environmental pressures.