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B2 2:1 & 2:2

QuestionAnswer
Weathering Process that breaks down rock and other substances at Earth’s surface.
Erosion The movement of rock particles by wind, water, ice, or gravity.
Mechanical weathering A type of weathering in which rock is physically broken into smaller pieces.
Abrasion The grinding away of rock by rock particles carried by water, ice, wind, or gravity.
Ice wedging Wedges of ice in rocks widen and deepen cracks.
Chemical weathering The process that breaks down rock through chemical changes.
Permeable A material that is full of tiny, connected air spaces that allow water to seep through it.
Soil The loose, weathered material on Earth’s surface in which plants can grow.
Bedrock The solid layer of rock beneath the soil.
Humus The dark-colored substance that forms as plant and animal remains decayed.
Loam Soil that is made up of about equal parts of clay, sand, and silt.
Soil horizon A layer of soil that differs in color and texture from the layers above or below it.
Topsoil A mixture of humus, clay, and other minerals
Subsoil ________ is made of clay and other particles.
Litter As plants shed leaves, thay form a loose layer.
Decomposer Organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals.
Created by: WadeOwe11
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