Of the two types of dumps utilized for solid waste, open dumps ____.
A. are rare in more developed countries
B. cover wastes with clay or plastic foam
C. have little odor
D. are vermin free
E. are the most environmentally friendly
Answer: A
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A common language spoken throughout Paraguay and lowland Bolivia is
A) Aymara B) Guarani C) Garifuna D) Quechua E) Mixtec
Which of the following rock photographs depicts an igneous rock that trapped gas?
A. 
B. 
C. 
D. 
Which of the following statements about the potential effects of global warming on human health is false?
A. Food and freshwater supplies are likely to be disrupted. B. People are likely to be displaced from coastal areas. C. Occurrence of insect-borne diseases is likely to decrease in temperate zones. D. Sanitation systems in coastal cities may be flooded. E. Respiratory diseases are likely to increase.
What effect does a large volcanic eruptions typically have on the atmosphere?
A) warming for several years B) cooling for one or two years C) cooling for several decades D) increases in CFCs