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Chapter 10 Vocab

Pages 278-300

TermDefinition
weathering the process by which rock materials are broken down by the 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 a high concentration of acids.
differential weathering the process by which softer, less weather resistant rocks wear away and leave harder, more 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 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
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 transports soil and sediment from one location to another
Created by: 20kturley
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