What erosion control practices would be best suited for a landscape with steep slopes? With gentle, rolling hills?
What will be an ideal response?
Answer: The best way to control erosion on steep slopes is to build terraces or to not farm on them. With a rolling landscape, it is best to plow parallel to the slope contours and to plant grass in natural drainage pathways.
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A nation whose population profile shows the widest bars in the 40 to 60 age groups with narrower bars for older and younger age groups most likely reflects
A) an increasing fertility rate. B) a fertility rate that has declined. C) the impact of increased immigration into the country. D) a war or pandemic between 50 and 70 years ago.
A study of the social and cultural meanings that people give to personal space — for example, how near or distant you like to sit near others in class — is known as
A) semiotics. B) proxemics. C) territoriality. D) vernacular space. E) sense of place.
Two commonly used inhalation anesthetics are Ethrane and Forane. They are two of many isomeric ethers which have the molecular formula C3H2ClF5O. In how many of these isomeric ethers are three F atoms bonded to a single carbon atom?
A) 6 B) 8 C) 10 D) 12
Which of the following describes the changing directions of the surface winds as a northward-moving hurricane passes to the east of an area?
A. from NE to N to NW B. from NW to N to NE C. from S to SW to W D. from W to SW to S