Glaciers
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | outwash
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| show | passive riding of the ice on the glacier
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| The grinding of rock against rock by a glacier produces a very fine sediment called ____. | show 🗑
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| show | Cirques, horns, and arêtes
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| show | deposits
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| Once a glacier is gone the land begins to uplift slowly to its pre-glacial height, a process called ____. | show 🗑
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| ___ moraines are elongate low mounds of till that form along the sides of valley glaciers. | show 🗑
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| The _____ is the end of a glacier. | show 🗑
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| show | zone of accumulation
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| A worldwide decrease of at least _____°C in temperature would bring about a new glacial age. | show 🗑
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| As ice retreats by melting back, the rock debris carried by the glacier is deposited to form a relatively thin layer of till called a(n) ___________. | show 🗑
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| show | ice sheet
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| show | erratic
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| A(n) _____ is a coastal inlet that is formed by a drowned glacial carved valley. | show 🗑
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| A(n) ____ is a long sinuous ridge of water-deposited cross-bedded and well-sorted sediment deposited by a stream that flowed within or under a glacier. | show 🗑
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| show | faster than
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| show | kettle
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| show | cirque
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| A(n) _____ is the sharp peak that remains after cirques have cut back into a mountain on several sides | show 🗑
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| show | zone of ablation
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| show | The Great Lakes
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| ______ first suggested that glacial/interglacial episodes are related to variation in solar radiation cycles. | show 🗑
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| If the terminus of a glacier remains stationary for a few years a distinct _______ may form. | show 🗑
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| show | icebergs
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| show | thicker
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| show | All of the above have contributed to the glacial ages.
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| show | varves
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| A(n) _____ -shaped valley (in cross section) is characteristic of glacial erosion. | show 🗑
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| show | ablates
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| A large trunk glacier carves a deeper valley than smaller tributaries. After the glacier disappears the tributary valley remains as _____ high above the main valley. | show 🗑
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| If all ice sheets were to melt, sea level would _____. | show 🗑
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| Open fissures called ___ develop in the brittle surface ice of glaciers. | show 🗑
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| The boundary between the zone of accumulation and the zone of ablation is an irregular line called the _____. | show 🗑
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| show | drumlins
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| show | glacial ages
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| A(n) ___ is a lake occupying a bedrock depression excavated by a glacier. | show 🗑
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| show | arêtes
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| show | medial
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Created by:
Thomas.Siu
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