Exam 10: Weathering, Soil, and Erosion

Explain the angle of repose is used in building codes to prohibit construction in unstable areas.

Explain how water content in soil impact mass wasting.

The removal of broken down rock material and sediments out of the Grand Canyon by the Colorado River is an example of erosion.

Explain how dissolution is different from hydrolysis.

In the weathering process of pressure-release fracturing, ____.

If you see trees on a hill that tilt uphill, what specific type of mass wasting have you observed? _______________

Soils that form from the weathering of underlying bedrock are called ____.

The evaporative concentration of salts in soils, particularly those that are heavily irrigated, is called ____________________.

Explain what types of mass wasting you would expect in steep walled canyon. Describe at least two types and discuss the risk factor for humans and property.

Feldspar weathers to form clay by the process of ____.

Explain how the steepness of a slope impacts mass wasting.

Explain how human activity can influence weathering and erosion.

If you decided to purchase a piece of land that had andisols, you would be moving to the Pacific Northwest or to Hawaii where volcanic bedrock has formed soil.

If leaching occurs from the uppermost soil horizons of dissolved ions and clays, which specific soil horizon will the materials leach into? _____________________

The process of moving loose gravel, sand, clay and soil by wind, water, or glaciers is ______________ which is different than the process by which solid rock is decomposed to loose gravel, sand, clay, and soil.

The combined effects of mechanical and chemical weathering processes that can cause coarse crystalline igneous rocks to become rounded boulders are known as ____.

Explain how earthquakes impact mass wasting.

If you see a road that has fractured due to rapid changes in temperature, what specific type of physical weathering have you observed? _____________________

If you see a steep hillside that has limited on no vegetation on its slope, this can increase the probability of landslides occurring.

In the process of hydrolysis ____.