Suppose the wind speed increases from 8 km/h to 16 km/h. Which of the following expresses the factor by which the force of the wind will have increased?

A. 2
B. 4
C. 5
D. 25


Answer: B

Environmental & Atmospheric Sciences

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The best way to avoid the evolution of pesticide resistance is to

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Motor vehicles are the world's largest source of out- door air pollution, causing about ____ premature deaths per year in the United States.

A. 100 B. 1,000 C. 11,000 D. 100,000 E. 1,000,000

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Why do the authors of your text use the word "domain" when talking about "the Russian Domain"?

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