What are the characteristics of an aquifer?
What will be an ideal response?
An aquifer is a body of rock or regolith with sufficient porosity and permeability to provide water in useful quantities to wells or springs. It is contained by confining beds of low permeability. Good aquifers have both high porosity and high permeability, which allows high volumes of water into the aquifer. Sands and gravels are very good aquifers, and some rocks such as limestone make good aquifers.
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When the U.S. city of Fort Worth, Texas, instituted a fee-per-bag waste collection program, the proportion of households recycling their trash plummeted from 85% to 21%.
Answer the following statement true (T) or false (F)
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A. 1 B. 2 C. 3 D. 4 E. 5
In theory, what are free-market economies based upon?
A) The supply of products B) The consumption of products C) Pure competition D) Government policies