Exam 14: Soil Formation and Landscape Stability

Which of the following is not a soil conservation measure?

________ soils in the southeastern U.S. are notable for red, clay-rich B horizons, rich in iron and aluminum.

Which horizon may accumulate minerals that are not present in the parent material?

________ soils often are rich in a black organic rich plant residue called peat.

The world's largest bauxite deposits, in northern Australia, form in ancient ________ soils.

Figure 14.5 -According to Figure 14.5, a major difference between the B horizons of forest soil and desert soil is

What might be present to cause a reddish color in a soil horizon?

How do human activities affect soils?

What is soil?

All of the following agricultural practices leave significant parts of the land exposed to water runoff and soil erosion except

Which is not a definition of soil?

Which horizon will show the least degree of weathering?

What is the role of vegetation?

Sticky, clumping soil contains

Why is there a greater concentration of calcite, halite, and gypsum in desert soils than in other soils?

________ soils in the United States typically have thick, dark, organic-rich A horizons.

What distinguishes soil horizons?

Which soil horizon contains poorly weathered regolith?

The soils in the central part of the United States used for growing wheat, corn and soybeans are classified as ________ soils.

According to Figure 14.5, the B horizon is most depleted in ________.