ESCI B: Unit 6 Ch. 15 Review

What are the key components of many of the products used in everyday life?

• Gold

• Minerals

• Copper

• Iron

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True or False: The majority of minerals that modern civilization relies on are relatively rare in Earth's crust.

• True

• False

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What process sort and concentrate minerals into economically viable ore deposits?

• Water cycle

• Mining

• Rock cycle

• Erosion

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Why are mineral ores often found in mountainous areas?

• Because of the elevation levels.

• Because of the intense heat and pressure associated with mountain building.

• Because of the watersheds in the area.

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What is a hydrothermal deposit?

• Melting magma and then cooling.

• Groundwater that is heated due to magma dissolving minerals, moving them, and depositing them.

• Purified and processed minerals.

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True or False: Fractional crystallization is the process when a rock is buried deep, melts, then later cools and recrystallizes so that minerals become concentrated.

• True

• False

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In which ways are mineral ores extracted from Earth?

• Surface pit mining

• Dredging

• Deep mining by tunneling

• All of the above

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How are minerals purified and processed?

• Refining

• Smelting techniques

• Both are true

True or False: Minerals vary in their physical properties, which makes them useful for a variety of different purposes.

• True

• False

How do scientists locate mineral resources?

• Understanding of geological processes.

• Test properties of soil and rock.

• Chemistry and physical properties of rock.

• All of the above.

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