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100
Weathering means, The chemical and physical process that break down rock at Earth's surface.
What is the definition of Weathering?
100
Soil means, the loose, weathered material on Earth's surface in which plants can grow.
What is the definition of soil?
100
Sod means, A thick mass of grass roots and soil.
What is definition of sod?
100
Abrasion means, The grinding of rock by other rock particles carried in water, ice, or wind.
What is the definition of abrasion.
100
Topsoil means, mixture of humans, clay, and other minerals that form the crumbly, topmost layer of soil.
What is definition of topsoil.
200
Erosion means, The process by which water, ice, wind, or gravity moves weathered rock or soil.
What is the definition of erosion?
200
Bedrock means, The solid layer of rock beneath the soil.
What is definition of bedrock?
200
Dust Bowl means, The area of great Plains where wind erosion caused soil loss during the 1930's.
What is definition of dust bowl?
200
Chemical Weathering means, the process that breaks down rock through chemical changes.
What is the definition of chemical weathering?
200
Subsoil means, the layer of soil beneath the topsoil that contains mostly clay and other minerals.
What is definition of subsoil.
300
Uniformitarianism means, The geologic principle that the same geologic process that the operate today operated in the past to change Earth's surface.
What is the definition of uniformitarianism.
300
Humus means, Dark-colored organic material in soil.
What is definition of humus?
300
Natural Resources means, Anything in the environment that humans use.
What is definition of natural resources?
300
Oxidation means, a chemical change in which a substance combines wit oxygen, as when iron oxidizes, forming rust.
What is the definition of Oxidation?
300
Litter means, the loose layer of dead plant leaves and streams on the surface of the soil.
What is definition of litter.
400
Mechanical weathering means, the type of weathering in which rock is physically broken into smaller pieces.
What is the definition of mechanical weathering?
400
Fertility means, a measure of how well soil supports plant growth.
What is definition fertility?
400
Contour Plowing means, Plowing fields along the curves of a slope to prevent soil loss.
What is definition of contour plowing?
400
Permeable means, characteristic of a material that is full of tiny, connected air spaces that water can seep through.
What is definition of permeable.
400
Decomposer means, soil organism that breaks down the remains of organisms and digests them.
What is definition of Decomposer.
500
Ice wedging means, Process that splits rock when water seeps into cracks, then freezes and expands.
What is the definition of ice wedging?
500
Loam means, Rich, fertile soil that is made up of about equal parts of clay, sand, and silt.
What is definition of loam?
500
Conservation means, The practice of using less of a resource so that it will not be used up.
What is definition of conservation plowing?
500
Soil Horizon means, the layer of soil that differs in color and texture from the layers above or below it.
What is definition of Soil Horizon.
500
Soil conservation means, the management of soil to prevent its destruction.
What is the definition of soil conservation?