Flooring Material Quiz
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Questions and Answers

What is the main cause of plate movement according to the text?

  • Gravitational pull from the moon and the sun
  • Friction between the mantle and the crust
  • Radioactive decay of uranium and other elements (correct)
  • Magnetic forces from the earth's core

    • What is the composition of the earth's mantle, as described in the text?

  • Nickel, copper, zinc, and lead
  • Carbon, nitrogen, hydrogen, and helium
  • Oxygen, silicon, magnesium, and iron (correct)
  • Aluminum, calcium, sodium, and potassium

    • What is the role of convection currents in plate movement, as per the text?

  • Causing the plates to smash into each other
  • Cooling the rock near the surface and causing it to sink toward the core
  • Heating the rock near the mantle and causing it to rise toward the crust (correct)
  • Pushing the plates under another plate

    • What causes the flowing down the ridge and gives the plate a slight push along, as described in the text?

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

    How are converging boundaries identified, according to the text?

    <p>By deep ocean trenches that mark the location where one plate is sliding under another one</p> Signup and view all the answers

    What is the upper part of the mantle called where the plates ride along?

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

    How thick can continental plates be, according to the text?

    <p>Up to 150 km</p> Signup and view all the answers

    What is the theory that the surface of the earth is broken into larger pieces of crust called?

    <p>Plate tectonics theory</p> Signup and view all the answers

    What do geologists study?

    <p>Earth and its processes</p> Signup and view all the answers

    What is the average thickness of oceanic plates, as per the text?

    <p>5-10 km</p> Signup and view all the answers

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