Relate drawdown to cone of depression
What will be an ideal response?
When a lot of water is withdrawn from a well, the water table around it is lowered. This is called drawdown. Drawdown decreases with increasing distance from the well, resulting in a roughly conical depression in the water table, called a cone of depression.
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NGOs exert some influence over U.S. environmental policy. Which one of the following is an NGO?
A) Canadian government B) Greenpeace C) U.S. Fish and Wildlife Service D) Democratic Party E) Democratic Republic of the Congo
To improve the resolution of radio telescopes, astronomers ________
A) scan the skies rapidly to detect the direction of the radio signal B) group smaller telescopes in arrays, like the very large array in New Mexico C) make bigger telescopes D) place the telescope in outer space
An equivalent map projection preserves true shape
Indicate whether the statement is true or false
Which of the following factors is typically NOT used to classify slope failures?
A. whether the material involved is rock or is unconsolidated B. the mechanism by which material moves C. the climate in which the failure occurs D. the rate of movement