Which of the following is true of the individual resonance structures which contribute to a resonance hybrid?
A) Each resonance structure actually exists.
B) Each resonance structure is less stable than is the resonance hybrid.
C) In going from one resonance structure to another the electrons move from one location to another.
D) None of the above is true.
B
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Increased reliance upon oil imports have generally paralleled
A) increased interest and involvement in Middle East politics. B) increased interest in fighting global hunger. C) decreased reliance on other fossil fuels. D) decreased efforts to explore alternate forms of fuel.
The climatologist, Glen Trewartha, modified the Köppen system by putting more emphasis on the ____
a. precipitation and evaporation b. lengths of growing seasons and average summer temperatures c. annual and monthly temperature averages d. annual and monthly precipitation averages e. vegetation and monthly temperature and precipitation values
Cyclone
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The following questions refer to the above illustration of a middle-latitude cyclone. The dashed lines show the positions of the fronts six hours ago.
Which of the following terms refers to the lines that connect points of equal pressure change?
A. contours B. isobars C. isograds D. isallobars
Which of the following conditions could best promote drier conditions to the Asian continent?
A. 1040 mb, outward clockwise flow B. 1040 mb, inward, counterclockwise flow C. 995 mb, inward, counterclockwise flow D. 995 mb, outward, clockwise flow