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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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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Environmental & Atmospheric Sciences

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

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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Environmental & Atmospheric Sciences

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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Environmental & Atmospheric Sciences