Which soil colloid has the greatest amount of permanent negative charge? - Answers -
2:! clays
Which of the following minerals is most soluble in a humid, temperate climate? -
Answers -gypsum (soluble, often found in arid regions)
T/F: The surface area within a volume decreases as soil particles get bigger - Answers -
True
CEC - Answers -Cation Exchange Capacity: Soil's ability to absorb and release cations.
A useful measure of soil's fertility. (cation: positively charged ion)
Function of Soil - Answers -Plant growth media
Regulate water supply
Recycle raw materials
Habitat for soil organisms
Engineering Medium
Atmosphere modifier
Properties of Soil - Answers -Texture, color, pore space, and chemistry.
5 Factors of soil formation - Answers -climate, organisms, relief, parent material, time
Parent Material - Answers -Alluvium
Colluvium
Residuum
Aeolian
Lacustrine
Marine
Glacial Till
Glacial Outwash
Alluvium - Answers -Water. a deposit of clay, silt, sand, and gravel left by flowing
streams in a river valley or delta, typically producing fertile soil.
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