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1. The source of energy that drives Earth's external processes is __________. Your Answer: the Sun   2. __________ weathering involves the complex processes that break down rock  components and internal structures of minerals. Your Answer: chemical   3. The physical removal of material by mobile agents such as water, wind, or ice is  referred to as __________. Your Answer: erosion   4. In nature, both types of weathering usually work simultaneously. Your Answer: True 5. What type of weathering feature is prominent on the cliff face on the left of this  photograph taken in Yosemite National Park? Your Answer: exfoliation  
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6. Examine the information on weathering at this  site . What type of weathering  produces the "rounding" of a rock? Your Answer: spheroidal   7. The physical breakdown and chemical alteration of rock at or near Earth's  surface is called erosion. Your Answer: False 8. Of the two types of weathering, __________ weathering is accomplished by  physical forces that break rock into smaller and smaller pieces without changing 
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Ch 6 - 1....

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