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Chapter 10
Vocab
Term | Definition |
---|---|
Weathering | The natural process by which atmospheric and environmental agents, such as wind, rain, and temperature chances, disintegrate and decompose rocks |
Mechanical Weathering | The process by which rocks break down 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 a high concentration of acids |
Differential Weathering | The process by which softer, less weather resistant rocks wear away at a faster rate than harder, more weather resistant rocks do |
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 proportions of soil particles |
Soil Structure | The arrangement of soil particles |
Humus | Dark, organic material formed in soil from the decayed remains of plants and animals |
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 transports soil and sediment from one location to another |