Exam 6: Weathering, Erosion, and Soil

Frost wedging in the mountains produces ____.

During spheroidal weathering of a rectangular stone, the ___.

Mass wasting is a gravity-driven process.

Frost action involving water repeatedly freezing and thawing in cracks and pores in rocks is a type of chemical weathering.

Caliche is a ____.

A measure of hydrogen ion concentration is known as ____.

What is an expansive soil?

Pressure release weathering results in ____.

Bauxite, which is formed during chemical weathering, is known as a residual concentration.

Briefly explain how hydrolysis results in the weathering of some minerals.

Clay particles in soil are important in soil development because they ____.

Soil undergoes chemical deterioration when its ____________________ are depleted causing its productivity to decrease.

The difference in elevation between high and low points in a region is called ____.

Salt crystals can exert enough force to widen cracks and dislodge particles in some rocks.

Weathering is an essential part of the ____________________ because when parent material breaks down into smaller pieces or perhaps dissolves, this weathered material may be transported elsewhere and deposited as sediment, the raw materials for sedimentary rocks.

Compare and contrast mechanical weathering and chemical weathering.

Horizon B has fewer organisms and less organic matter than horizon A. This horizon is also called the ____.

Soil develops ____.

A unique physical property of water is that it ____.

Define soil degradation and discuss the processes leading to it.