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Glacier Formation
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Glacier Formation

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Questions and Answers

What is the primary force that drives the movement of a glacier?

  • Temperature
  • Gravity (correct)
  • Pressure from surrounding rocks
  • Wind
  • What is the term for the intermediate texture between snow and ice that forms as snow accumulates?

  • Snowpack
  • Ice grains
  • Glacier mass
  • Firn (correct)
  • What is the name of the zone near the surface of the glacier where the ice is too brittle to flow?

  • Cracking zone
  • Flow zone
  • Rigid zone (correct)
  • Plastic zone
  • What is the minimum requirement for a glacier to form?

    <p>Cold climate</p> Signup and view all the answers

    What is the process by which ice grains change shape in a glacier?

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

    Which type of glacier is typically associated with mountainous regions and occupies valleys?

    <p>Alpine glacier</p> Signup and view all the answers

    What is the term for the process of ice being removed from a glacier?

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

    What type of valley is carved by an alpha glacier?

    <p>U-Shaped valley</p> Signup and view all the answers

    What is the term for a knife-edge ridge of rock that separates two adjacent cirques?

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

    What is the term for sediment transported by ice and deposited beneath, at the side, or at the toe of a glacier?

    <p>Glacial till</p> Signup and view all the answers

    What type of moraine forms when two valley glaciers merge?

    <p>Medial moraine</p> Signup and view all the answers

    What is the term for a period when temperatures are under the overall average, causing ice sheets to extend their range?

    <p>Glacial Period</p> Signup and view all the answers

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