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AR Managing Natural Resources Units 3 & 4

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Question
Answer
dead plant and animal material in various stages of decay   Organic matter  
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those materials underlying the soil from which the soil was formed   Parent material  
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the layer of natural materials on the earth's surface, containing both organic and inorganic materials, that is capable of supporting plant life   Soil  
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use of soil so damage or loss is minimal or nonexistent   Soil conservation  
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the process by which soil is removed   Soil erosion  
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layers in a mature soil   Soil horizon  
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a vertical section of a soil at a specific site   Soil profile  
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the arrangement of soil particles into shapes and sizes   Soil structure  
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the proportion of sand, silt, and clay in soil   Soil texture  
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an underground stream or pool in sand or gravel layers   Aquifer  
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the water beneath the surface of the earth; found in spaces between rocks and soil particles   Groundwater  
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the water cycle   Hydrologic cycle  
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water that is appropriate for human consumption without further purification or boiling   Potable water  
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water that runs on the earth's surface   Runoff water  
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water on the earth's surface, such as lakes, ponds, and streams   Surface water  
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a colorless, transparent, naturally occurring compound made of hydrogen and oxygen   Water  
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an area of land from which all the water that does not infiltrate the soil runs to a downhill location   Watershed  
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