The color to which human eyes are most sensitive is
A. blue.
B. yellow-green.
C. red.
D. all the same
Answer: B
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Which of the following describes where St. Elmo's fire is most likely to occur?
A. over a thick, moist swamp B. over a dry, grassy field C. at the top of a tall, dead tree D. near the base of a tree
Describe where flow velocity is highest in a semi-straight channel. Why is this the case? What will be an ideal response?
How did the concept of fronts come about?
What will be an ideal response?
Which of the following is the best definition of "uncontacted peoples"?
A) people who do not have Internet hook-ups B) people who do not have telephones C) people who do not have access to television D) cultural groups that have yet to be "discovered" by the Western world E) cultural groups, like the Maroons in Latin America, who make a point of living away from major population centers