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SOIL TEST: Rocks & Weathering, How Soil Forms & Soil Conservation

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Question
Answer
show abrasion  
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Ice wedging causes mechanical weathering of rock by means of _____ and thawing of water.   show
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The most important factors in determining the rate of weathering are rock _____ and climate.   show
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show bedrock  
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show fertility  
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show humus  
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A soil organism that breaks down and digests the remains of dead organisms is called a _____.   show
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show living  
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show thousands  
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_____ by water or wind can cause the loss of soil that is not protected by plant cover.   show
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show dust  
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What animal does most of the work of mixing humus with the soil?   show
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show permeable  
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show A  
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The _____, or particle size, of soil determines how much air and water the soil can hold.   show
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In a cross-section of soil, horizon letter ____ consists of clay, minerals, and little humus.   show
🗑
show weathering  
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show soil  
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show litter  
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show subsoil  
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show topsoil  
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_____ is the solid layer of rock beneath the soil.   show
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show plants  
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show clay  
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In a soil testing jar like yours in class, the bottom layer is made of the sediment _____. (Remember: our area of Ohio doesn't have sandy soil)   show
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show clay  
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Using a soil texture triangle in your journal, what type of soil would have 50% sand, 10% clay and 40% silt?   show
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show humus  
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The agent of mechanical weathering in which rock is worm away by the grinding action of other rock particles is called _____.   show
🗑
show humus  
🗑


   

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