Question 1

Briefly explain how Plate Tectonic Theory can explain evidence that some tropical regions have experienced glaciation in the past but cannot explain the Quaternary Ice Ages.

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Question 2

Which letter,S thru Z,corresponds to the object in the photo labeled "E"?

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Question 3

What distinguishes Valley or Alpine Glaciers,Ice Sheets,Ice Shelves,and Sea Ice from each other?

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Question 4

Wind is included along with gravity,water,and ice as an agent of erosion.In many national parks and other areas of natural beauty,statements are often made that credit wind as having sculpted the landscape.Briefly discuss the importance of wind as an agent of erosion and explain why such statements are probably geologically inaccurate.

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Question 5

The major rivers in the U.S.,including the Colorado and Rio Grande,originate in mountainous regions with significant contributions from snow melt and then cross arid regions before supplying the water needs for several cities in the U.S.and Mexico.Discuss the potential impact of climate change on the water supplies.

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Question 6

Antarctica's ice represents approximately 65% of the earth's fresh water supply and many populated regions need that water.Should we develop a program to mine Antarctica's ice and redistribute it to areas where it is needed? Explain your answer.

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Question 7

Would most features of alpine glaciation be preserved in the geologic record? Why or why not? What about continental glaciation?

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Question 8

In recent years there has been more discussion of droughts in places like eastern Texas,which is not considered a desert,than in southern Arizona which clearly is a desert.Does this mean that arid environments are changing and it would be better to invest in farm land near Phoenix,Arizona,than near Austin,Texas,for long term financial security?

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Question 9

Explain why crevasses only penetrate partway through a glacier.What limits their depth?

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Question 10

On the blanks provided,fill in the name of the labeled features that formed as a product of alpine glaciation.

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Quiz 6: Glaciers, deserts, and Wind