plate tectonics unit

  1. Alfred Wegener is best known for developing

3 points

QUESTION 2

  1. Describe what a subduction zone is and how subduction is related to the movement of lithospheric plates.

4 points

QUESTION 3

  1. After Pangaea broke up, Laurasia consisted of

3 points

QUESTION 4

  1. If an oceanic plate converges with a continental plate, the oceanic plate is subducted under the continental one. What property of oceanic plates leads to this observation?

3 points

QUESTION 5

  1. Which of the following is NOT an indication that all of Earth’s landmasses were once joined together and have subsequently split apart due to tectonic activity?

3 points

QUESTION 6

  1. If you placed a dot on a world map to represent the location of every earthquake in the last 100 years, where would you see earthquake activity most concentrated? Why is this so?

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4 points

QUESTION 7

  1. Earthquake waves travel at different velocities through different parts of Earth. This difference is based mostly on

3 points

QUESTION 8

  1. On a seismic risk map, the color white is associated with
    low earthquake risk
    no earthquake risk
    moderate earthquake risk
    severe earthquake risk

3 points

QUESTION 9

  1. Large waves of sea water triggered into motion by an earthquake are called

3 points

QUESTION 10

  1. Which of the following should you NOT do immediately after an earthquake?

3 points

QUESTION 11

  1. How do tectonic plates move in respect to each other at convergent plate boundaries?

3 points

QUESTION 12

  1. Explain how the formation of oceanic trenches and folded mountain belts on continents are related to convergent plate boundaries.

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4 points

QUESTION 13

  1. Why are volcanoes common at convergent plate boundaries?

3 points

QUESTION 14

  1. Large ash flow eruptions are associated with which type of volcano?

3 points

QUESTION 15

  1. What type of magma will have the most built-up pressure because of its high strength and viscosity?

3 points

QUESTION 16

  1. The zones where lithospheric plates moves apart from one another are called

3 points

QUESTION 17

  1. Describe the features of the mid-ocean ridge. How is the formation of the mid-ocean ridge related to plate tectonics?

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4 points

QUESTION 18

  1. Heat flow from the ocean floor is highest at

3 points

QUESTION 19

  1. Which oceanic feature is associated with divergent plate seismicity?

3 points

QUESTION 20

  1. Continental rift zones are areas where the crust has been

3 points

QUESTION 21

  1. The San Andreas Fault in California is caused by horizontal sliding of the Pacific Plate past the North American Plate. This is an example of a

3 points

QUESTION 22

  1. How do transform plate boundaries contrast with divergent and convergent plate boundaries?

3 points

QUESTION 23

  1. Which of the following famous transform fault systems produces large earthquakes in Canada?

3 points

QUESTION 24

  1. Which of the following best describes earthquakes along transform plate boundaries?

3 points

QUESTION 25

  1. What kind of activity produces metamorphic rocks at transform plate boundaries? What happens to cause the formation of new rocks at these locations?

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4 points

QUESTION 26

  1. Isostatic adjustment refers to

3 points

QUESTION 27

  1. Which of the following best describes the topography of a continental shield?

3 points

QUESTION 28

  1. Which geologic province of North America is a place where the crust has been uplifted and extended, forming alternating areas of high elevation and low elevation?

3 points

QUESTION 29

  1. The Hawaiian Islands are part of a volcanic arc and are formed by volcanism at a convergent plate boundary.





2 points

QUESTION 30

  1. A hotspot is a surface manifestation of a mantle plume.





2 points

QUESTION 31

  1. Mantle plumes have not been observed directly. How do we infer that they exist?

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4 points

QUESTION 32

  1. Which of the following environmental problems can be associated with volcanic eruptions?

3 points

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