Wind can transport sediments through different ways, which are:
A. traction of small pebbles
B. saltation of sands and silts
C. suspention of silts and calys
D. dissolution of ions
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Most of our present knowledge about the wind's ability to erode and transport sand comes from the 1920s to 40s work of Ralph Bagnold in the deserts of North Africa.
Which of the following best describes an “artesian” type of well?
A. the well is horizontal and the water table is perched
B. the water is warm, saline and recharged by a losing stream
C. water rises above the top of the aquifer without any pumping
D. pressurized groundwater rises from a deep, unsaturated aquifer
Which of the following situations would be the best aquifer?
A. high porosity and low permeability
B. low permeability and high porosity
C. high porosity and high permeability
D. low porosity and low permeability
Where is the water table at the surface, and where is the water table above the surface?
A. in streams and hill tops, respectively
B. in hill tops and swamps, respectively
C. in lakes and streams, respectively
D. in swamps and lakes, respectively
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