A good source region for an air mass would be:
a. mountains with deep valleys and strong surface winds.
b. generally flat areas of uniform composition with light surface winds.
c. hilly with deep valleys and light winds.
d. generally flat area of uniform composition with strong surface winds.
b
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U.S. folk housing styles demonstrate a distribution best explained by
A) different time periods of popularity for each style. B) ideal designs for different climates. C) locally available building materials. D) migration patterns. E) All of these choices are correct.
How does the ionosphere affect GPS?
A) GPS satellites orbit the Earth in the ionosphere. B) GPS ground stations lose contact with geosynchronous satellites orbiting near the poles. C) GPS signals much pass through the ionosphere, whose gases weaken the signal. D) Positively charged ions in the ionosphere speed up the GPS signal, causing signal error.
Which of these countries has the lowest share of proven oil reserves?
A. United States B. Saudi Arabia C. Venezuela D. Iran
Which of the stations listed below should have the highest temperature?
A) point A B) point J C) point F D) point H E) point E