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Earth's Spheres and Internal Structure

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  • Which parts of the Earth are contained in the lithosphere?
    The upper mantle and the crust.
    The lower mantle and the crust.
    Both the inner and outer core.
    The outer core and lower mantle.
  • How are mantle plumes and hot spots related?
    None are correct
    Hot spots erupt and form mantle plumes.
    Mantle plumes rise & break through the crust, make hot spots
    Hot spot is another word for mantle plume.
  • What is the name of the Earth's outermost, 60-mile-thick, layer?
    Biosphere
    Lithosphere
    Hydrosphere
    Asthenosphere
  • We look up in the sky and see a cloud. Which sphere is this cloud in?
    Both the hydrosphere and atmosphere
    The geosphere only
    The atmosphere only
    The hydrosphere only
  • A plant rooted in the ground has a connection to which sphere(s)?
    Biosphere only
    Geosphere, biosphere, hydrosphere, and atmosphere
    Hydrosphere, atmosphere, and geosphere
    Biosphere and hydrosphere only
  • The interior of the Earth is part of which sphere?
    The biosphere
    The hydrosphere
    The atmosphere
    The geosphere
  • Which of the following is NOT a reason that sphere interactions are important?
    They change matter through different phases.
    They help to keep matter in one place.
    They recycle material on Earth.
    They form the overall system of Earth.
  • Which of the following events is LEAST likely to trigger a tsunami?
    An underwater earthquake that causes a plate to move upwards
    Rock weathering in the Northwest Hawaiian Islands
    An underwater landslide
    A volcanic eruption on the Big Island of Hawaii
  • Which of Earth's interior layers is liquid iron?
    The outer core
    None are liquid
    The mantle
    The inner core
  • How do we know that seismic waves have reached a new layer in the Earth's interior?
    Nothing happens, they simply travel through.
    They travel all the way to the core before bouncing back.
    They change speed as they reach different layers.
    They get bounced back when they reach the mantle.
  • Why can both P and S waves travel through the mantle?
    The mantle is a solid.
    The mantle is not very far below the Earth's surface.
    Parts of the mantle are solid and other parts are liquid.
    The mantle is a liquid.
  • Why are plants and animals part of the biosphere?
    Because they live on the ground.
    Because they can travel in the air.
    Because all living things are part of the biosphere.
    Because they can migrate.
  • What is the cause of earthquakes, volcanoes, and mountains on Earth?
    Movements in the outer core.
    Convection currents in the mantle.
    Convection currents in the crust.
    Sinking of the oceanic crust.
  • Which of these is part of the Earth's lithosphere?
    Core
    Hydrosphere
    Crust
    Liquid Mantle
  • What happens to P waves when they reach the outer core?
    They speed up because it is liquid.
    They slow down because it is liquid.
    They speed up because it is solid.
    They slow down because it is solid.
  • Why is the inner core solid?
    Because of plasticity.
    Because it is under too much pressure to melt.
    Because it is very hot.
    Because it consists mostly of silicon.
  • Which is NOT one of Earth's four spheres?
    The hydrosphere
    The troposphere
    The biosphere
    The geosphere
  • Why is rain not part of the atmosphere?
    Because it is part of the hydrosphere.
    Because it moves between spheres.
    Because it is part of the biosphere.
    Because it is part of the geosphere.
  • If scientists can ONLY detect P waves in a certain layer of the Earth's interior, what does that tell us?
    We know that the layer is the mantle.
    We know that the layer is liquid.
    We know that the layer could be either liquid or solid.
    We know that the layer is solid.
  • Which of the following is true about the Hawaiian islands?
    The islands are all the same age.
    There is no order to their age.
    none
    The islands get older as you travel northwest.
  • Which statement about the four spheres of Earth is true?
    They describe distinct layers of Earth's interior.
    They often occur in the same place and interact.
    They occur in the same place, but do not interact.
    Scientists think there are more than four spheres of Earth.
  • How can you tell where one sphere ends and the next one begins?
    You look it up in a textbook.
    You calculate which sphere is more involved.
    There are no hard rules, and often spheres overlap.
    You find the exact point where they meet.
  • How does the inner core differ from the outer core?
    The inner core is solid, while the outer core is liquid.
    The inner core is very cold while the outer core is very hot
    The inner core is made of iron the outer core is lithium
    The inner core is characterized by plasticity.
  • Which of these is NOT one of the four spheres of Earth that are said to drive all its processes and support life on the planet?
    Lithosphere
    Atmosphere
    Geosphere
    Hydrosphere