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Unformatted text preview: Glacial outwash is glacial deposits that have been reworked by melt water streams 6. Describe how snow becomes glacial ice. (1 pt) Snow is 90% air which means there is less water. A snow becomes granular ice, firn, and then glacial ice, there becomes less air and more water which is the transformation of snow to glacial ice. 7. What are two glacial features that allow geologists to determine the direction of glacial movement? (1 pt) Accumulation and abalation 8. How is glacier related to global warming? (2 pt) Glaciers are sensitive to temperature change. Ice cores from glaciers are continuous records providing scientists with information regarding past climates. Trapped air bubbles reveal atmospheric composition and temperature variations....
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- Fall '05