About 90% of radon-related lung cancers in the United States occur among ____.
A. overweight people
B. children
C. pregnant women
D. current or former smokers
E. the elderly
Answer: D
Environmental & Atmospheric Sciences
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Secondary pollutants are
A. chemicals or substances emitted directly into the air. B. those formed from reactions with other pollutants in the atmosphere. C. found only in stratospheric ozone D. also known as natural pollutants. E. found only in fossil fuels.
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How do the height and thickness of clouds influence the probability of precipitation?
What will be an ideal response?
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Define "visual hierarchy" in map design.
What will be an ideal response?
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What are the human impacts on the Earth System?
a. The modification of landscapes and ecosystems b. Pollution c. Recent global warming d. All of the above e. Both a and b
Environmental & Atmospheric Sciences