What is an artesian well? What are the geological factors that make artesian wells possible? What will be an ideal response?
An artesian well is a water well where natural pressure forces water to the surface without the need for
a pump. Inclined aquifers sandwiched between aquicludes confine water at depth in much the same
way that a garden hose does. The difference, of course, is shape, wherein the hose is cylindrical and
the confined aquifer is a layer. But the same hydraulic principles apply. Raising one end of a section of
hose filled with water will cause water to gush out of the lower end. The weight of the water in the
higher end pressurizes the lower end. In the same way, an inclined confined aquifer will be pressurized
at its lower end. A well drilled into this pressurized layer will gush toward the surface on its own.
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Indicate whether the statement is true or false
Which of the following pesticides was used to kill termites and treat wood between 1948 and 1988?
A) PCB B) Atrazine C) Lindane D) DDT E) Chlordane
Which of these industries typically receives the highest government subsidies?
A. extractive B. reusing and recycling C. consumption Awareness D. sustainable use
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A. Because of large government subsidies and tax breaks to oil producers. B. Because of the cost of transporting oil across the ocean from the Middle East. C. Because of advertising and marketing costs. D. Because it is very difficult to explore and produce oil in Alaska and offshore.