Roughly one half of the volume of an "average" soil type is composed of ________
A) organic material
B) clay
C) pore spaces
D) cations
E) rocky fragments
Answer: C
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Saltwater or marine life zones include
a. Oceans b. Estuaries c. coral reefs d. oceans and estuaries e. oceans, estuaries and coral reefs
During which era of the Historical Evolution of the U.S. City were cities compact, usually about 3-4 miles in diameter?
A) Internet era B) Electric Streetcar era C) Pedestrian/Horse car era D) Automobile era E) Freeway era
The reason common window glass doesn't converge or diverge light is because
A. light doesn't refract as much in window glass. B. its surfaces are parallel. C. it lacks lens qualities. D. all of the above
The greatest improvement in forecasting skill during the past 30 years has been made in forecasting
a. ?snowstorms along the eastern seaboard. b. ?the development of middle latitude cyclones in the Pacific Ocean. c. ?severe storm warnings for hurricanes and tornadoes. d. ?the movement of warm and cold fronts. e. ?maximum and minimum temperature 6 to 10 days into the future.