Exam 11: The Global Distribution and Character of Soils

Soil will develop faster in a cold,dry place than in a warm,wet one.

Select all of the following roles that organisms play in soil:

The wilting point is reached in a soil-water budget when evapotranspiration is equal to precipitation.

Broken rock debris in the process of soil formation that overlies solid bedrock is called

The study of soil as a natural resource is

Soils that are highly organic and important for truck farming (market gardening)are

Five soil properties are color,texture,structure,soil chemistry,and soil pH.

Soil texture is the lumps,and structure is the individual pieces of soil.

Soil classification from larger to smaller according to the U.S.system is

The balance of soil water that involves the amount of precipitation,evapotranspiration,and water storage and loss is the:

Lime is added to the soil to change its structure.

B horizons that are enriched in eluviated clay are described as being

Residual soils form directly above their __________.

Time is the primary soil-forming factor of inceptisols.

The layers of an undisturbed and well-developed soil profile from top to bottom would be

Write in the soil order with which each of the following statements is most closely associated. i)soils typically formed in recently deposited sediments (no horizons)[1] ii)abundant in the boreal forests of Canada [2] iii)found in the deserts of Africa [3] iv)You're likely to encounter these soils in forests of eastern United States.[4] v)found in forests of Florida [5]

Write in the name of the horizon that each of the following statement describes: i)mineral soil horizon characterized by the illuvial accumulation of aluminum,iron,and organic carbon [1] ii)diagnostic horizon of podzolization from which class and free iron oxides have been removed,resulting in a light-colored E horizon [2] iii)diagnostic horizon that is enriched in illuviated calcium carbonate [3] iv)hard,cemented layer of calcium carbonate deposits in a calcic horizon of the soil [4] v)diagnostic horizon that forms due to the recrystallization of secondary salts [5]

Volcanic ash as the dominant parent material makes spodosols.

The soil order shown on the map is

Mediterranean dry-summer is the climate BEST associated with aridisols.