The crisis in controlling bedbugs has encountered difficulties because

A) bedbugs are vectors for serious human diseases and require powerful chemical pesticides.
B) home applications of effective pesticides can endanger children.
C) the only way to get any control is to burn infested bedding.
D) bedbugs are internal parasites that require long doses of antibiotics to eliminate.


B

Environmental & Atmospheric Sciences

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Which plate lies between the South American and Pacific plates?

A. Nazca B. Juan de Fuca C. Indian-Australian D. North American

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Many types of American popular music originated in the Inland South, including ________ and ________

Fill in the blank(s) with correct word

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What are some effects of building a dam?

A. The reservoir (lake) traps sediment that over time fills up part of the reservoir. B. A dam, whether constructed by nature or by humans, represents a permanent change in base level. C. A stream has more sediment below the dam and so can erode more efficiently. D. The stream erodes into the land instead of depositing sediment, where it enters the reservoir.

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