Geomagnetic reversals________________________
a) provided strong evidence for seafloor spreading
b) caused all the mass extinctions in recorded geologic history
c) destroyed compasses ane electronic equipments
d) confirmed the existence of subduction zones
e) cause the movements of plates
Answer: a) provided strong evidence for seafloor spreading
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a. 68% b. 78% c. 88% d. 98% e. 48%
On a weather map, a red line with red semi-circles indicates a(n)
A) cold front. B) warm front. C) stationary front. D) occluded front. E) dissolving front.
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A) 0.50 atm B) 1.0 atm C) 1.5 atm D) 2.0 atm
The speed of the wind is unaffected by ________
A) friction B) pressure gradient C) the Coriolis effect D) differences in heating between locations E) the roughness of Earth's surface