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12 Cards in this Set

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Chemical Weathering
breakdown of rock's composition caused by the effects of chemicals on them
Climate
the normal expected type of weather in a particular area...as observed over a long period of time
Desertification
the gradual transformation of an area into a desert
horizon
one of the three layers of soil that cover most areas of the Earth
hummus
organic matter in the soil that is dark and composed of decayed organisms
ice wedging
a type of mechanical weather in which freezing water expands from inside rocks...splitting them open
leaching
soild materials move from one horizon to another after being dissolved and transported by water passing through the soil layers
mechanical weathering
breakdown of rock where chemical state of rock is not affected
oxidation
chemical weathering that inovlves water and oxygen
soil
combination of decayed plant and animal matter, minerals, sediment and air that covers the uppermost layers of the ground
soil profile
a section of the soil in which the distinct layers can be observed
weathering
process by which rocks deteriorate or disintigrate into smaller pieces due to mechanical or chemical processes