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| The process that occurs when physical forces break rock into smaller pieces without changing the rock's chemical composition is called ______. |
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| What is the weathering processes involving the constant freezing and thawing of water ? |
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| What are the processes of mechanical weathering ? |
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| When water freezes, its volume ______________________________. |
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| What of the following is the result of chemical weathering ? |
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| What kind of weathering would cause the writing on marble gravestone to become harder and harder to read over time ? |
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| A soil's texture is determines by _____________________. |
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| The main source of organic matter in soil is _____________________. |
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| Use figure 5-1 to determine what soil is called if it has 20 percent clay, 60 percent silt, and 20 percent sand . |
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| a well-developed soil profile, what horizon is uppermost layer ? |
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| In figure 5-2, what is the layer labeled X ? |
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| In figure 5-2, what is the layer labeled Y composed of ? |
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| A soil that is characteristic of the humid eastern United States is ________________________. |
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| A soil associated with the hot and wet tropics is __________________________________. |
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| Which of the following human activities has cause an increase i soil erosion ? |
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| The process responsible for moving material down-slope under the influence of gravity is called _________________________________________________. |
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| What is the force behind mass movements ? |
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| What is the slowest type of mass movement ? |
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| What is responsible for the information of exfoliation domes ? |
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| The gradual rounding of the corners and edges of angular blocks of rock is called _____________________. |
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| The process called ___________________________ involves physical forces that break rock into smaller pieces. |
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| In the process of ________________________, water freezes and expands,enlarging cracks in rocks . |
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| A large pile of debris that forms at the base of slope is called ___________________. |
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| The most important agent of chemical weathering is _____________________________. |
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| The layer of rock and mineral fragments produced by weathering, and covering nearly all of Earth's land surface, is called ______________________. |
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| Human activities that remove vegetation have resulted in a(n) _____________________________ in soil erosion. |
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| The force that drives mass movements in ____________________. |
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| List three factors that affect the rate of weathering. |
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| How are soils classified based on texture ? |
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| What are the three processes that break rocks into smaller pieces during mechanical weathering ? |
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