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chapter 10 vocab
chapter 10
Question | Answer |
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weathering | the process by which rock materials are broken down by the action of physical and chemical processes. |
mechanical weathering | the breakdown of rock into smaller pieces by physical means. |
abrasion | the grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles. |
chemical weathering | the process by which rocks break down as a result of chemical reactions. |
acid precipitation | rain, sleet, or snow, that contains high concentration of acids. |
differential weathering | the process by which softer, less wear away and leave harder mor weather resistant rocks behind. |
soil | a loose mixture of rock fragments, organic material, water, and air that can support the growth of vegetation. |
parent rock | a rock formation that is the source of soil. |
bedrock | the layer of rock beneath soil. |
soil texture | the soil quality that is based on the properties of soil particles. |
soil structure | the arrangement of soil particles. |
humus | the dark, organic material formed in soil from the decayed remains of plants and animals. |
leaching | the removal of substances that can be dissolved from rock, ore, or layers of soil due to the passing of water. |
soil conservation | a method to maintain the fertility of the soil by protecting the soil from erosion and nutrient loss. |
erosion | the process by which wind, water, ice, or gravity transport soil and sediment from one location to another. |