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5.21: Plate Tectonics- Challenge 3

  • Page ID
    5399
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    1. What happens when an oceanic plate and a continental plate converge?
    The oceanic plate subducts beneath the continental plate.
    2. Two lithospheric plates come together and one sinks beneath the other at a ___ zone.
    subduction
    3. Order the following events in the creation of an island arc: the subducting plate causes melting in the mantle above it (1); two oceanic plates converge (2); the magma finds a crack in the crust and fills a magma chamber beneath a volcano (3); the older, denser plate subducts into a trench (4)
    2, 4, 1, 3
    4. When two oceanic plates converge, an ___ is created.
    island arc
    5. The Himalayas and other mountain ranges are the result of the convergence of two ___ plates.
    continental
    6. When two continental plates converge, ___.
    mountains grow upward
    7. The tallest mountains on Earth are in the ___, which formed by two continental plates converging.
    Himalayas
    8. ___ is geologic activity that takes place away from plate boundaries.
    Intraplate activity
    9. What caused the bend in the Hawaii-Emperor volcanic chain?
    The Pacific Plate changed its direction of motion.
    10. Which volcano lies above the Hawaiian hotspot?
    Kilauea

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