Exam 18: The Geography of Soils

Soil science is an interdisciplinary study that incorporates aspects of physics,chemistry,biology,mineralogy,hydrology,taxonomy,climatology,and cartography.Briefly describe how these various fields may be beneficial to the study of soils.

A roughly equal mix of sand,silt,and clay is called

Calcification is likely to occur in

____are recently developed soils lacking vertical horizon development.

The multiyear period of severe wind erosion and soil loss occurred in the Great Plains during the 1930s is known as

Acidic soils

Which of the following human activities does not make soils more prone to erosion?

Podzolization is likely to occur in

Which of the following is among the most mature soils on Earth?

In which of the following areas would one likely find Oxisols?

Which of the following is correct about the U.S.soil classification system?

These soils are high in expandable clays and found in regions experiencing highly variable soil- moisture balances through the seasons.

Where would one must likely find Entisols?

The organic rich horizon found at the top of the soil profile is ___the horizon.

In a west to east transect across the 98th meridian in the United States,which of the following is the correct sequence of soil orders?

List and briefly describe the various physical properties used to differentiate soils.

These grassland soils are some of the Earth's most significant agricultural soils.

Laterization is likely to occur in

Soils with volcanic parent material belong to which soil order?

A vertical cross section of soil extending from the surface to the deepest extent of plant root activity or to the regolith and bedrock is known as a