Exam 12: Soils and Soil Development

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The deposition of soil components by gravitational water percolating downward is called ______________. ​

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illuviation

Major soil components include inorganic matter, organic material, water, and ______________. ​

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air

A soil is sometimes called "mature" when ____. ​

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D

Soil water that is bound to the surfaces of soil particles by strong electrical force is called ____. ​

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Capillary water ____. ​

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Parent material can be rock fragments that were carried to the site by streams or glaciers. ​

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Chemical activity increases and decreases directly with temperature, given equal availability of moisture. ​

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The largest division in the classification of soils is the soil ______________.

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Podzolization usually occurs in conjunction with ____. ​

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Desert soils tend to be alkaline. ​

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Which of these particles has the smallest diameter?

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Which type of soil is generally reddish in color from iron oxides? ​

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In low-lying desert regions, rapid evaporation of surface water leading to a high concentration of soluble salts in the soil is called ______________. ​

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Soils in the eastern part of the U.S. tend to be alkaline and soils in the West tend to be acidic. ​

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Peds give the soil a particular structure and are clumps of individual mineral particles. ​

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The soil-forming process that occurs in humid tropical and subtropical climates due to high temperatures and abundant rainfall, and results in reddish soils, is called ______________. ​

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A soil rich in organic material will be ____. ​

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On the pH scale, 5.0 is neutral. ​

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Classification of soils is termed soil ______________. ​

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What is the correct order from smallest to largest of these soil particles? ​

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