Exam 12: Soils and Soil Development

Which of these statements is true?

Gases are important components in a soil. ​

Permeability refers to the soil's capacity to store water. ​

Eluviation occurs due to ____. ​

Over the long term, as a soil develops, the influence of parent material on its characteristics diminishes. ​

What can color tell you about a soil? ​

The weathered fragments of rock from which soil is formed are called the ______________ material. ​

Oxisols are common in ____. ​

Calcification concentrates the mineral ______________ in the soil. (two words)​

A soil with a pH of 4 would be considered alkaline. ​

The decayed remains of plant and animal materials that have been partially transformed by bacterial action are termed ______________. ​

In general, loam soils are best suited to support vegetation growth. ​

Soil horizons that are exposed at the surface are called ______________. ​

Which type of soil develops in desert regions? ​

Broadly generalizing, the three primary soil-forming regimes are ____. ​

What are the soil factors represented by Cl, O, R, P, and T? ​

The soil-forming factor that has the least effect in differentiating soil at the local level is ____. ​

The general pattern of layered changes in soil with depth is called ______________. ​

Which type of soil is most closely associated with grassland regions?

Which horizon contains partly weathered parent material? ​