Exam 11: Soil and Water Resources

-Which marked letter in this figure designates the capillary fringe?

-In the figure, in which soil horizon are clays and dissolved chemicals deposited through illuviation?

-The __________ is the elevation to which hydraulic pressure will push water in pipes.

The horizontal layers in soils are called regoliths.

Which is not used in groundwater remediation?

-Using Table 11.1, which vegetation type has the highest total carbon (soil-carbon and plant-carbon) content?

Population growth and economic development often increase the demand for water resources.

Soil color indicates what the soil is composed of and the climate under which it formed.

Loam consists of about 70% sand, 20% silt, and 10% clay by volume.

The most important soil-loss factor is due to __________.

Water seeps into the ground by gravity through the process of __________.

-Do you think luxury services, such as golf courses, are justifiable given their water footprint? Does your answer depend on whether you golf or not? Are there other similar activities you could argue as being equally unjustifiable? What are they?

The __________ soil horizon is also called topsoil.

All groundwater extraction in Saudi Arabia is groundwater mining.

Which climate zone has the deepest soils?

A lack of water and soil resources was implicated in the downfall of the Maya.

-In the figure, gray soils indicate __________.

Groundwater in the southern Ogallala Aquifer is fossil groundwater.

-According to the figure, soils that occur where the ground is permanently frozen are called __________.

Clay has high porosity and low permeability.