ES 11.2 Reading Quiz

What is a mineral resource?

• A chemical element or inorganic compound that exists as a solid with a regularly repeating internal structure.

• A concentration of minerals large enough to cover the cost of extracting and processing it into raw materials and useful products.

• A solid combination of one or more minerals found in Earth’s crust.

• A rock formed from sediments such as sand, mud, and organic matter.

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Which of the following is an example of a sedimentary rock?

• Granite

• Basalt

• Slate

• Sandstone

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What process forms igneous rock?

• Weight and pressure compress layers of sediment

• Magma cools and hardens

• High heat, pressure, and/or chemical interactions transform other rock

• Erosion, melting, and metamorphism

Which mineral is commonly found in sedimentary rocks?

• Quartz

• Calcium carbonate

• Mica

• Feldspar

What is the rock cycle?

• The process of extracting and processing minerals into raw materials

• The interaction of physical and chemical processes that change Earth’s rocks from one type to another

• The formation of concentrated deposits of minerals that form mineral resources

• The recycling of rocks over millions of years by erosion, melting, and metamorphism

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Which of the following is a nonmetallic mineral?

• Gold

• Sand

• Copper

• Manganese

What is an ore?

• A rock that contains a large enough concentration of a mineral to make it profitable for mining and processing

• A mineral with superior or unique properties that make it extremely useful in technology products

• A rock formed when an existing rock is subjected to high pressure and high temperatures

• A solid combination of one or more minerals found in Earth’s crust

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Minerals usually contain

• 1 substance

• 2 substances

• 3 substance

• a variable number of substances

Minerals usually exist as

• rocks

• crystals

• solutions

• molten lava

Crystals form when rocks

• melt then gradually cool down

• solidify then gradually heat up

• heat up to extreme temperatures

• cool down to extreme temperatures