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Chapter 12

Chapter 12. Tectonics, Earthquakes, and Volcanism. Review: Earth’s Surface Relief Features. What order of relief is represented by a hill behind your house? first second third fourth none of the above. Review: Earth’s Surface Relief Features.

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Chapter 12

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  1. Chapter 12 Tectonics, Earthquakes, and Volcanism Robert W. Christopherson Tim Schultz

  2. Review: Earth’s Surface Relief Features • What order of relief is represented by a hill behind your house? • first • second • third • fourth • none of the above

  3. Review: Earth’s Surface Relief Features • What order of relief is represented by the Canadian Rockies? • first • second • third • fourth • none of the above

  4. Review: Crustal Deformation Processes • Which of the following is incorrect regarding what happens when compressional and tensional forces are applied to rocks? • Folding can occur. • Thinning can occur. • Faulting can occur. • Subduction can occur.

  5. Review: Crustal Deformation Processes • A fault created when rocks are pulled apart from one another is a • normal fault. • reverse fault. • thrust fault. • strike-slip fault. • thinning fault.

  6. Review: Crustal Deformation Processes • The fault depicted is a • normal fault. • reverse fault. • thrust fault. • strike-slip fault. • thinning fault.

  7. Review: Orogenesis • Which of the following is true of orogenies? • Most mountain ranges are the result of a single orogeny. • Orogenesis continues today in many of the world’s ranges. • A collision between two continental plates is required for an orogeny. • Orogenesis generally creates volcanoes but not fault-block mountains.

  8. Review: Earthquakes • Which of the following most accurately explains the origin of earthquakes? • Cracks form in the surface as Earth’s crust cools. • Radioactive decay within the mantle creates explosions. • Volcanic magma moves suddenly within Earth. • A fault builds up strain until it finally moves, releasing energy.

  9. Review: Volcanism • Which type of volcanic eruption consists of large volumes of lava and massive landforms? • explosive • effusive • subductive • extrusive

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