The boundary between Argentina and Chile is an example of a
A) prorupted boundary.
B) geometric boundary.
C) physical boundary.
D) cultural frontier.
E) perforated frontier.
Answer: C) physical boundary.
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Current environmental conditions will dictate which traits are beneficial, and will ultimately drive evolution through the process of ____________________
Fill in the blanks with correct word
Photochemical smog generally requires the presence of
a. nitrogen oxides b. Sunlight c. volatile organic compounds d. Heat e. all of these answers
Which of the following is most similar in volume to an acre-foot of water?
A) 1,000 Gallons B) An acre covered to a depth of 3 feet (1 meter) C) Most of a football field covered to a depth of 1 foot D) A square mile of land covered to a depth of 3 feet (1 meter) E) 20 Million gallons
In order to make a forecast,
A) detailed information only about atmospheric conditions east and west of the forecast location is needed. B) detailed information only about atmospheric conditions north and south of the forecast location is needed. C) detailed information only about atmospheric conditions above the ground is needed. D) detailed information about atmospheric conditions in all three dimensions is needed.