What is the most abundant gas in the atmosphere?

a. Oxygen
b. Nitrogen
c. Methane
d. carbon dioxide
e. water vapor

B

Environmental & Atmospheric Sciences

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Barometric pressure is often expressed as the _______ of a column of mercury in a barometer

A) weight B) density C) temperature D) height

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The least effective way to deal with air pollution is to

A) make smoke stacks higher. B) add filters to polluting stacks. C) limit the amount of pollution in a particular location. D) All of these

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Which of the following is not a nonmetal?

A. sulfur (atomic no. = 16) B. titanium (atomic no. = 22) C. selenium (atomic no. = 34) D. helium (atomic no. = 2) E. xenon (atomic no. = 54)

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The main urbanized zone that is home to 70 percent of all Japanese is

A. Hokkaido B. Tokaido megalopolis C. Nagasaki D. Akita

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Environmental & Atmospheric Sciences