The epas air quality index measures all of the

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12) The EPA's Air Quality Index measures all of the following EXCEPT A) carbon monoxide.B) natural gas.C) particulate matter.D) nitrogen dioxide. 13) The key component of smog is 14) Which of the following does NOT make smog more likely to form?
15) A gas or vapor that traps infrared radiation instead of allowing it to escape through the atmosphere is called a(n) 16) The greenhouse effect contributes directly to A) acid rain.B) global warming.C) ecological homeostasis.D) smog. 17) Levels of atmospheric greenhouse gases are rising in large part because of 18) If the greenhouse effect does raise temperatures worldwide, it is predicted that all of the following will happen EXCEPT 19) The ozone layer in the upper atmosphere 20) The most obvious depletion of the ozone layer has occurred over A) Antarctica.B) the United States.C) the equator.D) Africa. 21) Release of ________ into the atmosphere is the primary cause of the depletion of the ozone layer.
22) Of the following diseases, the thinning of the ozone layer is most likely to increase the incidence of 23) Water is usually disinfected by using 24) The water treatment that helps reduce tooth decay is A) filtration.B) disinfection.C) chlorination.D) fluoridation. 25) Which of the following is TRUE about U.S. water systems?

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