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Questions and Answers
What is the term for the mix of rock, stones, sand, and clay carried by a glacier?
What is the term for the mix of rock, stones, sand, and clay carried by a glacier?
- Lateral moraine (correct)
- Ground moraine
- Glacial till
- Erratic
What is the term for the material deposited by a glacier?
What is the term for the material deposited by a glacier?
- Glacial till
- Ground moraine (correct)
- Erratic deposit
- Lateral moraine
What is characteristic of erratics?
What is characteristic of erratics?
- They are only found in glacial till
- They are smaller than the surrounding rocks
- They are of the same type as the surrounding rocks
- They are usually larger than the surrounding rocks (correct)
Which of the following is NOT a characteristic of a lateral moraine?
Which of the following is NOT a characteristic of a lateral moraine?
What is the primary difference between an erratic and a ground moraine?
What is the primary difference between an erratic and a ground moraine?
What is the primary force driving the movement of glaciers?
What is the primary force driving the movement of glaciers?
What causes the ice in a glacier to deform and move like a slow-moving river?
What causes the ice in a glacier to deform and move like a slow-moving river?
What factor influences the movement of a glacier in addition to gravity?
What factor influences the movement of a glacier in addition to gravity?
What is the result of the weight of the ice on a glacier?
What is the result of the weight of the ice on a glacier?
What is the role of meltwater at the base of a glacier?
What is the role of meltwater at the base of a glacier?
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Study Notes
Glacial Deposition
- A lateral moraine refers to the mix of rock, stones, sand, and clay carried by a glacier.
Types of Moraines
- Ground moraine: material deposited by a glacier.
Erratics
- Erratics are rocks that are different in type from the surrounding rocks and are often larger in size.
Glaciers in Motion
- Glaciers flow downhill due to the force of gravity.
- The weight of the ice causes it to deform and move slowly, similar to a slow-moving river.
- Glacier movement is influenced by the temperature of the ice.
- Meltwater at the base of the glacier also affects its movement.
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