Chapter11review - Chapter 11 Review Christian Smith 1 Today...

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Chapter 11- Review Christian Smith 1. Today, glaciers cover about 10 percent of the land area. Valley glaciers are found in high, mountainous regions at all latitudes. Ice sheets and ice caps are found only at high latitudes in such areas as Iceland, Greenland, and Antarctica; the Antarctic ice sheet is by far the largest. During the height of the Pleistocene glaciations, about 30 percent of the land area was ice covered. 2. The water in ice sheets and glaciers can be viewed as removed from the oceans and temporarily stored on land. Glacial ice, like groundwater, does eventually return to the sea, but the recycling time is hundreds to thousands of years compared to months or a few years for surface water runoff from rainfall events and melting snow. By a large margin, glacial ice represents the largest freshwater reservoir in the hydrologic cycle. Lowered sea level accompanies net growth of ice sheets; net shrinking of ice sheets causes sea level to rise. As global temperatures rise, glaciers undergo net loss of ice, sea level rises, and the surface area of the oceans increases. 3. A. This refers to continental glaciers or continental ice sheets like the ones that cover most of Greenland and Antarctica today. B. This would be a valley
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  • Spring '13
  • NguyenVanVuong
  • Glacier, piedmont glacier, Christian Smith, ice sheets

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