In the case study “Desert Debris Flows and Housing on Alluvial Fans—Tucson, Arizona, 2006,” why did the hydrograph for Sabino Creek show higher and higher discharge rates between July 27 and July 31?
What will be an ideal response?
ANSWER: The thin layer of soils became saturated by precipitation events at the beginning of the rain period, so water could not continue to infiltrate to become groundwater. Runoff increased, which increased discharge and the peaks on the hydrograph.?
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Using statistics presented in this chapter, discuss the problem with groundwater contamination in the United States
What will be an ideal response
Collapse of soil structure due to saturation is called:
a. settlement b. shrinkage c. hydrocompaction d. shear failure
Which of the following is FALSE regarding nuclear power?
A) Some countries have begun phasing out nuclear power plants. B) Nuclear power plants are expensive to build. C) Nuclear fusion creates large amounts of nuclear waste. D) Accidents have occurred at a few nuclear power plants around the world. E) Nuclear waste can contaminate the areas where it is disposed.
The total number of plant and animal species that a field biologist identifies along a mountain trail is an example of ________
A) species composition B) structural diversity C) species evenness D) species richness E) genetic diversity