wear away or change appearance
Weathering
removal of the oldest dead skin
exfoliation
crack formed by a narrow piece of ice that extends up ward
ice wedging
disintegration of rocks
chemical weathering
the bubbles in soda
carbonation
chemical breakdown of a compound
hydrolysis
acidic properties
organic acid
pH of less than 5.6
acid precipitation
weather conditions
climate
natural and artifical physical features
topography
solid rock under soil
bedrock
the layer of unconsolidated rock
regolith
substratum
parent rock
soil under surface soil
sub soil
organic componet of soil
humus
subject
leaching
rock and soil that are rich
laterites
process of eroding or being eroded by wind
erosion
landform created by running water into soil
gullying
growing crops on a hill land
contour farming
make or form a sloping land
terracing
rotating around an axis
rotation
a avalanche of mud
mudflow
to plummet or drop
slumps