Outdoor air pollutants
A. can travel via prevailing winds.
B. are a low risk human health problem.
C. mostly occur in rural areas.
D. are increasing in developed countries.
E. are not regulated in the United States.
Answer: A
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Mathematics is useful in physics when
A. making scientific measurements. B. relationships are studied. C. calculating trajectories of projectiles. D. all of the above
The common staple food of Southern Africa is
A. rice B. wheat D. yams
A key characteristic of aquatic dead zones is ________
A) a low concentration of keystone species B) a low concentration of oxygen C) low concentrations of nitrogen and phosphorus D) a lack of water E) a high concentration of urban development
Which factor of industrial location is more of a unifying theme than the others?
A. transportation B. raw material C. labor D. power E. market