Which of the following is NOT true of sunspots?
A) They can be several times larger than Earth.
B) They are brighter than the rest of the Sun's surface.
C) They can produce flares and prominences.
D) They are surface disturbances caused by magnetic storms.
B
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Which of the following is NOT an air mass that influences North America?
A) cA B) mT C) mP D) mA E) cP
When examining a surface map, which of the following factors can be used to predict the movement of a surface low-pressure area?
A. orientation of the isobars behind a cold front B. orientation of the isobars in front of warm front C. movement during the previous two hours D. region of greatest pressure decrease
Which of the following is a correct example of global warming creating a negative feedback?
A. Ice has a lower albedo than water so replacing ice with water causes the surface to warm. B. More water evaporating will create more low level clouds causing the surface to cool. C. Ice has a higher albedo than water so replacing ice with water causes the surface to warm. D. Less water evaporating will create more low level clouds causing the surface to warm.
Generally, global cities are divided into
A) categories, called forward leaning, stagnant and backward leaning cities. B) two levels, called primate and non-primate cities. C) three levels, called alpha, beta, and gamma. D) four levels, called alpha, beta, gamma and delta. E) None of the above