Sediment yield to streams is greatest during which type of land use in a drainage basin?
a. construction
b. post-construction
c. forest
d. crop production
a
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Which of the following is not true of dry climates?
A) Dry climates are generally located in bands immediately to the north and south of the low-latitude humid climates. B) Many dry regions are associated with the subtropical high pressure zone. C) Some deserts are caused mainly by mountain ranges that isolate land from ocean sources of moisture. D) Arid climates have severe moisture shortages year round, while most semiarid climates have a rainy season in which sufficient moisture is available for abundant, if brief, vegetation growth. E) Both arid and semiarid regions lack sufficient moisture and heat to make any plants grow for more than a month each year.
The epidemiological transition focuses on distinctive ________ at different stages of the demographic transition
A) patterns of growth B) causes of death C) rates of growth D) life expectancies E) fertility rates
Which of the following is most likely a functional region?
A) an area where new ideas seem to be circulating the fastest B) the area of dominance of a particular church or sect C) the area that a person regards as a hometown D) the area of dominance of a television station E) area where people tend to be fans of a particular professional football team
Which of the following is true of cytokines?
A) They are highly specific antibodies. B) They are long lived. C) They are stored in cells. D) None of these is correct.