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Chapter 12

Multiple-Choice Quiz

Multiple-Choice Quiz
Our Multiple-Choice Quiz will test your knowledge of the basic concepts and ideas offered in Chapter 12. By successfully reviewing these concepts, you will reinforce your comprehension of these geographic ideas.

This activity contains 20 questions.

	Which factor is the most important in determining soil characteristics?   time climate type of bedrock topography the vegetation cover

	The smallest soil particles are what?   pebbles clay sand gravel silt

	Which of the following soils will have the highest cation exchange capacity (CEC)?   a soil with a high sand content and high humus content a soil with a high silt content and high clay content a soil with a high clay content and high humus content a soil with a high clay content and low humus content a soil with a low clay content and high humus content

	Intense and prolonged episodes of freezing and thawing cycles often produces a soil structure that is what?   platy blocky prismatic granular crumb

	Soils produced by laterization   are poor agricultural soils. contain little humus. are located mainly in the tropics and subtropics. are heavily leached. are all of the above.

	A soil with a dark brown or black color is indicative of what?   considerable organic matter content iron oxide stains excessive leaching poor drainage good drainage

	The development of a thick, dry, organic-rich A horizon than has experienced only modest leaching of the main base cations represents the _____ process.   podzolization calcification laterization salinization gleization

	A pedogenic regime in which humic (organic) acids cause iron to be transported in relative abundance from the E horizon into the B horizon is the _____ process.   laterization salinization podzolization calcification gleization

	Moisture that is held at the surface of soil particles by surface tension is called _____ water.   capillary hygroscopic gravitational deionized combined

	Which of the following describes the location along the soil moisture continuum beyond which soil water is unavailable for plants?   hygroscopic water soil-texture change eluviation field capacity wilting point

	The process of downward migration of soil ions, colloids, and other particles in soil profiles is known as _____.   oxidation salinization eluviation illuviation reduction

	Salinization of soil is a greater problem in   dry climates. wet climates.

	The pedogenic regime that occurs in cool moist climates under coniferous forests is called   spodosolization. podzolization. laterization. calicification none of the above

	Which of the pedogenic regimes is active in dry desert regions, especially internally drained depressions?   calcification podzolization salinization laterization none of the above

	An ashy-gray E horizon is common to   mollisol soil. aridisol soil. vertisol soil. oxisol soil none of the above.

	This soil found in Kansas was most likely formed by Image Source: NRCS   calcification. salinization. laterization. podzolization.

	The soil in the previous question is most likely a   spodosol. oxisol. andisol. mollisol. vertisol.

	This soil is most likely a   spodosol. mollisol. oxisol. vertisol. aridisol.

	The E horizon is typically found   above the O horizon. beneath the A horizon. beneath the B horizon. beneath the C horizon.

	Use the soil texture triangle to answer the following: A soil with 40% silt, 30% clay, and 30% sand is   asilt loam. aclay loam. a clay. a loam none of the above.

Answer choices in this exercise appear in a different order each time the page is loaded.

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