carbonation		areas receiving more than 65 cm of rain each year
plains		chemical reaction between water and another substance
humus		______ is formed bye plowed up furrows washed away with rainfall, the the furrow becomes larger forming a small gully
channel		a dark, organic material
mountains		water flows over the land into rivers
ice wedging		are flat or gently sloped surfaces generally not high above sea level
water cycle		"almost flat"
parent rock		______ is feldspar combined with water
mechanical weathering		change in physical form or chemical composition of rock at earth's surface
pedocal		______ are curved cracks parallel to the surface
regolith		the path that a stream follows
exfoliation		rideges or elevated regions of high ground that seperate watersheds
stream piracy		chemical cobination of metalic elements with oxygen
sheet erotion		layer of a soil profile
landforms		extremely slow downhill movement of weathered rock material
kaolin		process in which sheets of rock peel or flake as a result of weathering
creep		the different physical features of earth's surface is also known as..
oxidation		Is the capture of a stream in one watershep by a stream with a higer rate of erosion in another watershed
buttes		when water vapor rises in the atmosphere it expands and cools giving you ______
runoff		used to determine the composition of these soil layers
leaching		process in which water carries dissolved minerals to lower lyrics of rocks.
condensation		sudden movement of masses of loose rock and soil down the slope of a hill, mountain, or cliff
mesas		high-elevation flat surfaces
terracing		process by which the products are transported
erosion		a river system is made up of a main stream and all the feeder streams, called ______
hydrolosis		thick infertile soils produced in tropical climates
laterites		knobs of hard rock, such as granite
horizons		crops are planted in alterate bands
peneplain		process that changes the physical form of rocks
joints		______ is the collection of fragments at the base of the slope
soil profile		process by which water falls from clouds to the earth's surface as rain, snow, sleet, and hail
groundwater		______ is soil resulting from the deposit of this material
contour plowing		cycle of water movement
tributaries		farmers plant one type of crop one year and a different type the next
precipitation		rock from which the soil was weathered
gullying		movement of fragments down a slope
divides		process in which liquid water changes into water vapor
solifluction		slow downslope flow of wet, muddy topsoil over frozen or clay-ruch subsoil
weathering		______ is the construction of steplike ridges that follow the contours of a slope field
landslide		the soil is plowed in circular bands that follow the contour, or shape, of the land
slump		steep landforms of very high elevations
chemical weathering		process in which parallel layers of topsoil are stripped away
strip-cropping		when mesas ultimately erode down to small, narrow-topped formations it is now a ______
evaporation		layer of weathered rock fragments covering mcuh of the earth's surface
plateaues		mechanical weathering caused by freezing water that seeps in the cracks of rocks
monadnocks		water soked deep into the soil and rock ungerground
talus		fall of rock form a steep cliff
headwaters		erosion may disect plateaus into smaller, tablelike areas called ______
crop rotation		process in which rock is broken down as a result of a chemical reactions
rockfall		chemical weathering process in which minerals react with carbonic acid
mass movement		downhill movement of a large block of soil under the influence of gravity
transported soil		areas receiving less than 65 cm of rain a year
pedalfer		the begining of a stream