Mid-Atlantic Ridge and Oceanic Surveys Quiz
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Questions and Answers

What is the term used for magma that erupts onto the surface from volcanoes?

  • Obsidian (correct)
  • Gabbro
  • Limestone
  • Granite
  • Which zone in the ocean has a temperature that is constant at 4°C?

  • Hadalpelagic zone
  • Bathypelagic zone (correct)
  • Mesopelagic zone
  • Abyssopelagic zone
  • What is the characteristic feature of the Hadalpelagic zone?

  • Low pressure
  • High temperature
  • Frequent sunlight
  • Lack of color pigments in animals (correct)
  • What rock type is formed when gas bubbles are trapped in the rock during the cooling process?

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

    Which sea animal can tolerate extreme pressure and rapid changes in water temperature?

    <p>Giant tube worm</p> Signup and view all the answers

    In which zone do sea animals use bull kelp for both food and shelter?

    <p>Mesopelagic zone</p> Signup and view all the answers

    What type of rock is formed when magma is erupted into the water at the mid-ocean ridge?

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

    What mineral found in ocean floor rocks at the mid-ocean ridge is responsible for their magnetism?

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

    At what temperature does magnetite lose its magnetism?

    <p>500°C</p> Signup and view all the answers

    Which part of Earth's interior is composed of the lithosphere and the asthenosphere?

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

    What phenomenon describes the process by which new plate is constantly being created at the mid-ocean ridge?

    <p>Seafloor spreading</p> Signup and view all the answers

    What term describes the large scale motions of Earth's lithosphere, encompassing continental drift and seafloor spreading?

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

    What is the main focus of plate tectonics?

    <p>The lithosphere</p> Signup and view all the answers

    What type of plate boundary is characterized by plates moving apart?

    <p>Divergent boundary</p> Signup and view all the answers

    What process occurs when oceanic crust is subducted beneath continental crust?

    <p>Subduction zone</p> Signup and view all the answers

    What geological feature is formed when magma rises to fill gaps at divergent plate boundaries?

    <p>Mid-Oceanic Ridge</p> Signup and view all the answers

    How are continents and ocean basins affected by plate movements?

    <p>They move and change in shape</p> Signup and view all the answers

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