According to the Soil Conservation Service, it takes about ____ to form topsoil from the subsoil parent material
a. 15 years c. 25 years
b. 20 years d. 30 years
D
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Which of the following is a common example of a pleated cartridge filter?
A. Fish tank filter B. Vacuum filter C. Swimming pool pump filter D. Automatic swimming pool cleaner filter
The most common roof decking materials for houses are plywood and ____ (OSB).
A. oriented-strand beams B. oriented-steel beams C. oriented-strand board D. oriented-steel board
What art form claimed to be the most suitable to the Romantic imagination?
a. literature b. music c. painting d. sculpture
Why did burghers and merchants in many towns in France, the Netherlands, and Italy set out their rights in charters?
a. to become independent of royal authority b. to insure their relative freedom from noble and church interference c. to weaken the power of guilds and communes d. to slow the influx of peasants migrating from the countryside to the towns