Which of the following conditions favor the development of dust devils?
a. hot, moist days
b. hot, dry days
c. cold, moist days
d. cold, dry days
b
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Any open container having a consistent cross-sectional area throughout can be used as a ________.
Fill in the blank(s) with correct word
The system that ties cities together via various tiers stratified by population size and economic significance is called the
A) non-basic sector. B) urban hierarchy. C) the central business district. D) global city. E) none of the above
Why might coating a metal with another metal that is harder to oxidize prevent the first metal from being oxidized?
A. All of the oxidizing agent is consumed using up the easily oxidized metal. B. It doesn't prevent it, but helps to slow it down. C. The metal that is coated is protected from moisture and oxygen so it doesn't react. D. The metal that is acting as the coating is protected from moisture and oxygen. E. all of the above
Most countries adopt a selective immigration policy that excludes unwanted migrants and includes more desired ones
Indicate whether the statement is true or false.