When air masses come together ____
A) very little weather activity results
B) a tropical cyclone forms
C) the denser air mass slides beneath the lighter air mass forming a front.
D) the lighter air mass slides beneath the denser air mass forming a storm surge
C
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This type of fog is most likely to form when there is a three-mile-per-hour wind: ________
Fill in the blank(s) with the appropriate word(s).
The gas that absorbs most of the harmful ultraviolet radiation in the stratosphere is:
a. water vapor. b. nitrous oxide. c. carbon dioxide. d. ozone. e. chlorofluorocarbons
The mercury thermometer operates on the principle of
A. energy emission from a surface. B. thermoelectric principles. C. liquid expansion and contraction.
Where did the greatest urban growth taken place in late 20th century America?
A. Southeast and Gulf of Mexico B. Great Plains and Atlantic East C. Northeast and Middle West D. the West