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Glacial ice can form during the duration of a single winter season in most glacial areas.

A) True
B) False

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During a glacier surge,a glacier may move forward at a speed of up to


A) 1 cm per day.
B) 1 metre per day.
C) tens of meters per day.
D) a few kilometers per hour.
E) a thousand metres in a day.

F) B) and D)
G) A) and E)

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Write an essay in which you discuss the formation and appearance of erosional and depositional landforms created by continental glaciers.

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Continental glaciers, also known as ice ...

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Write an essay on the development of the Great Lakes outlining changes in flow directions as the Pleistocene glaciers melted.

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The Great Lakes, which consist of Lakes ...

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Flowing soil in an area of frozen ground is known as


A) patterned ground.
B) permafrost.
C) gelifluction,or the more general term solifluction.
D) periglacial flow.
E) outwash plain.

F) A) and E)
G) B) and D)

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Which of the following is a depositional feature formed by,or in association with,a continental glacier?


A) valley train deposit
B) terminal moraine
C) lateral moraine
D) esker
E) recessional moraine

F) B) and C)
G) D) and E)

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During the height of the Pleistocene ice age,the glaciers extended as far south as the Ohio and Missouri river systems.

A) True
B) False

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Which of the following is associated with a glacial outwash plain?


A) drumlin
B) kettle
C) kame
D) esker
E) till

F) A) and B)
G) B) and D)

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Which of the following is correctly matched?


A) crevasses - horizontal cracks from friction or tension
B) ice regelation - the melting and refreezing of surface ice
C) glacial ice - a metamorphic version of snow and firn
D) firn - freshly fallen snow on the ice surface
E) englacial - on the ice surface

F) C) and E)
G) A) and B)

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During a surge,a glacier can move faster than an average person can run.

A) True
B) False

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Diagram and label a scene showing typical pre and postglacial landscape features.

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A typical preglacial landscape may inclu...

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Which of the following is true?


A) Earth's axial tilt is steady through time.
B) the ellipticity of Earth's orbit is steady through time.
C) Earth wobbles on its axis.
D) Earth's orbit is progressively longer over time.
E) Earth is moving closer to the Sun with each millennium.

F) A) and C)
G) A) and B)

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Thoreau's Walden Pond is an example of which of the following?


A) kame
B) kettle
C) esker
D) drumlin
E) tarn

F) A) and C)
G) B) and E)

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A visible snowline across the surface of a glacier is called


A) an equilibrium line.
B) a medial moraine.
C) a firn line.
D) the ice line.
E) a recessional moraine.

F) D) and E)
G) A) and E)

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The transformation of snow into glacial ice in Antarctica takes ________ than in midlatitude alpine glaciers because ________.


A) less time less snow falls per year in polar regions
B) longer less melting and refreezing occurs in Antarctica
C) less time more snow falls each year in polar regions
D) less time less melting and refreezing occurs in the midlatitudes
E) longer it has to pile much deeper.

F) C) and E)
G) A) and B)

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If two glaciers with lateral moraines join,a medial moraine is produced.

A) True
B) False

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Which of the following types of moraines is oriented parallel to the direction of ice flow?


A) terminal
B) recessional
C) medial

D) B) and C)
E) A) and C)

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Solifluction includes which of the following?


A) patterned ground
B) gelifluction
C) processes that generally affect level areas
D) daily changes in solar energy amounts
E) abrasion

F) A) and B)
G) A) and D)

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Past climate changes occurred because of


A) variations in the solar constant
B) a steady decrease in temperature from the beginning of time until the Industrial Revolution
C) celestial and geophysical factors
D) a steady,uniform decrease in the atmosphere's ability to hold moisture.
E) chaotic,non-cyclic changes in Earth's elliptical orbit.

F) B) and C)
G) None of the above

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Showing 141 - 159 of 159

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