Describe sediment transport as bed load, including saltation What will be an ideal response?
Bed load contains sand and larger particles that are too heavy to be carried in suspension. Transport is
by saltation or by rolling and sliding. Saltation occurs when wind starts sand grains rolling and lifts
and carries some grains short distances before they fall back to the ground. Falling sand grains strike
other grains on the surface, causing them to bounce along. Once saltation begins, the grains continue to
move even if the wind speed drops because the collisions continue to occur.
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Acid deposition has been linked to
a. contamination of fish with mercury b. leaching of calcium and magnesium from soils c. releasing ions of cadmium and aluminum into the soils d. weakening trees, so they become more susceptible to other types of damage e. all of these answers
A temperature inversion is most likely to occur under which of the following conditions?
a. on a mountain top in late evening b. windy, but cloudy night c. calm, cloudy, humid night d. calm, clear, and cool winter night
An area distinguished by a unique combination of features is a(n)
A) biome. B) landscape. C) region. D) uniform unit. E) ecosystem.
During pumping of a confined aquifer, water is produced by:
a. lowering of the water table b. compression of the aquifer matrix c. the hydraulic conductivity d. both a and b