The primary cause of soil erosion is ________
A) no-till agriculture
B) crop rotation
C) strip cropping
D) over cultivation
E) use of crop cover
Answer: D
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Europe has deindustrialized in the last several decades. However, the two major industries are:
A. textiles and food processing B. fishing and farming C. coal and oil D. automobiles and airplanes
If a tornado is rotating in a counterclockwise direction and moving toward the northeast, the strongest winds will be on its ____ side
A) southwestern B) southeastern C) northeastern D) northwestern
A rotational slide is most likely to occur in ____
a. ?rounded sand grains on a gentle slope b. ?large boulders with smooth sides c. ?new snow lying above packed snow d. ?homogenous, cohesive materials e. ?slopes with high water pressure
The majority of Earth's crust is composed of ________ rock
A) igneous B) metamorphic C) sedimentary D) carbonate