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Chapter 10


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
Created by: 20KRussell