Rocks and Minerals Classification
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Questions and Answers

What is the primary composition of limestone?

  • Silicon dioxide (SiO2)
  • Aluminum oxide (Al2O3)
  • Iron oxide (FeO)
  • Calcium carbonate (CaCO3) (correct)

    • Which type of rock is formed below or on the earth's surface under intense heat and pressure when magma cools and hardens?

  • Igneous rock (correct)
  • Metamorphic rock
  • Sedimentary rock
  • Foliated rock

    • What is the process by which sediments are transported to downstream, downwind, downhill, or underwater sites?

  • Compaction
  • Deposition
  • Weathering and erosion
  • Transportation (correct)

    • What is the result of the increasing weight and pressure on underlying sedimentary layers?

    <p>Conversion of sedimentary layers to rock</p> Signup and view all the answers

    Which type of rock is formed from the compacted remains of dead aquatic organisms?

    <p>Limestone</p> Signup and view all the answers

    What is the bulk of the earth's crust primarily composed of?

    <p>Igneous rock</p> Signup and view all the answers

    What is the primary process responsible for forming metamorphic rock?

    <p>High temperatures and pressures</p> Signup and view all the answers

    What is the term for the process of changing the Earth's rocks from one type to another?

    <p>Rock cycle</p> Signup and view all the answers

    What is the result of the rock cycle process?

    <p>Formation of sedimentary, igneous, and metamorphic rocks</p> Signup and view all the answers

    What is the term for rock that contains a large enough concentration of a particular mineral to make it profitable for mining and processing?

    <p>Ore</p> Signup and view all the answers

    What is the role of the rock cycle in the formation of concentrated deposits of nonrenewable mineral resources?

    <p>It plays a major role</p> Signup and view all the answers

    What is the time scale of the rock cycle process?

    <p>Millions of years</p> Signup and view all the answers

    What is the primary driver of convection cells in the Earth's mantle?

    <p>Tremendous heat within the core and mantle</p> Signup and view all the answers

    What is the term for the molten rock that flows upward into the crust from the asthenosphere?

    <p>Magma</p> Signup and view all the answers

    What is the combination of the crust and the rigid, outermost part of the mantle called?

    <p>Lithosphere</p> Signup and view all the answers

    What is the definition of a mineral?

    <p>A naturally occurring chemical element or inorganic compound that exists as a solid</p> Signup and view all the answers

    Why are minerals considered nonrenewable resources?

    <p>Because they take millions of years to form</p> Signup and view all the answers

    What is the definition of a rock?

    <p>A solid combination of one or more minerals found in the earth's crust</p> Signup and view all the answers

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