North Korea's major rice producing area lies in the:
A) northeast
B) northwest
C) southeast
D) southwest
D
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Unlike solar, hydropower plants ________
A) do not pose a great safety risk B) can be added to gradually as demand grows C) can consistently generate electricity at night D) can be constructed quickly
Anyone who has ever gone swimming in heavy surf will tell you that if a wave is about to crash over you, the best thing to do is dive down, under the wave. Why does this keep you from being swept up in the wave, like being in a washing machine?
A) You dive below the shoreward moving part of the elliptical particle motion of the wave. B) You dive into the rip current, which will carry you out to sea. C) You get carried sideways by a longshore current, which is better than being beaten up by the breaking wave. D) You dive into the base of the zone of circular motion associated with the wave.
Using the Köppen classification system, what classification would you assign to a region that is wet year round and has monthly mean temperatures that never dip below 18°C?
A) Am B) Aw C) Af D) As
Plastics in the sea are a hazard to marine life because ________.
A. they ensnare animals B. they are eaten by animals C. they ensnare animals and they are eaten by animals D. their colors confuse animals E. they ensnare animals, they are eaten by animals, and their colors confuse animals