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Chapter 7

Across
Chemical reaction of oxygen with other substances
Loose covering of weathered rock particles and decaying organic matter (humus) , overlying the bedrock of Earth's surface, and serves as a medium for the growth of plants
Erosion that occurs when a rill channel widens and deepens
Rocks and minerals break down into smaller pieces
Process by which outer rock layers are stripped away
Soil that develops from parent material that has been moved far from its original location
Process in which materials on or near Earth's surface break down and change
Vertical sequence of soil layers
Down
Occurs when eroded materials are dropped in another location
Freeze-thaw cycles of water in the cracks of rocks
Process by which rocks and minerals undergo changes in their composition
Distinct layer within a soil profile, O, A, B & C
Soil whose parent material is the local bedrock
Develops when running water cuts small channels into the side of a slope
Removal of weathered rock and soil from its original location