About 1.5 million Americans get sick annually from fecal contamination producing large health costs. Preventive measures would cost

A. slightly more.
B. about the same.
C. less.
D. much more.


Answer: C

Environmental & Atmospheric Sciences

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A landmass in the Precambrian made up of North America, Greenland, parts of northwestern

Scotland, and perhaps some of the Baltic shield of Scandinavia:a. Gondwana d. Pangaea b. Laurentia e. Antarctica c. Rodinia

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Suppose you are told that the area where you lived was once a shallow sea that evaporated. What kind of rock are you most likely to find that is related to that time?

A. Clastic B. Biochemical C. Chemical

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Oceans and land surface are distributed evenly on the Earth

Indicate whether the statement is true or false

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The green flash is largely an example of the ____ of light by Earth's atmosphere

a. ?refraction b. ?reflection c. ?absorption d. ?diffraction e. ?transmission

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