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13 terms

Weathering

STUDY
PLAY
soil horizon
a layer in a soil profile
bedrock
The solid layer of rock beneath the soil
soil
material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use)
parent rock
A rock formation that is the source of soil
Transported soil
soil that is blown or washed away from its parent rock
Humus
partially decomposed organic matter
soil texture
the soil quality that is based on the proportions of soil particles
chemical weathering
The process that breaks down rock through chemical changes
mechanical weathering
The type of weathering in which rock is physically broken into smaller pieces
physical weathering
weathering that changes the shape and size of rocks without changing the physical makeup of the rock
terracing
carving small, flat plots of land from hillsides
wet and hot
Chem. weathering is most rapid in areas that are...
sea cliffs
formed when waves erode and undercut rock to produce steep slops