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15 Cards in this Set
- Front
- Back
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weathering
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the natural process by which atmospheric and environmental agents such as wind, rain and temperature changes, disintegrate and decompose rocks
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mechanical weathering
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the process by which rocks break down into smaller pieces by physical means
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abrasion
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the grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles
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chemical weathering
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the process by which rocks break down as a result of chemical reactions
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acid precipitation
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rain, sleet or snow that contains a high concentration of acids
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differential weathering
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the process by which softer, less weather resistant rocks wear away at a faster rate than harder, more weather resistant rocks do
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soil
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a loose mixture of rock fragments, organic material, water and air that can support the growth of vegetation
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parent rock
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a rock formation that is the source of soil
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bedrock
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the layer of rock beneath soil
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soil texture
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the soil quality that is based on the proportions of soil particles
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soil structure
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the arrangement of soil particles
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humus
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the dark, organic material formed in soil from the decayed remains of plants and animals
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soil conservation
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a method to maintain the fertility of the soil by protecting the soil from erosion and nutrient loss
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erosion
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the process by which wind, water, ice or gravity transport soil and sediment from one location to another
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salinization
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the accumulation of salts in soil
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