The necessary conditions for hail formation include strong upward vertical motion and:
A) raindrops larger than 5 mm. B) warm temperatures at high levels in the cloud.
C) large numbers of particulates. D) large numbers of supercooled droplets.
D
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The minimum concentration factor necessary for profitable mining of an ore deposit depends on each of the following except
A. the metal's average concentration in a deposit. B. the mineral in which the metal of interest occurs. C. how the metal will be used once it is extracted from ore. D. the price of the metal being recovered.
What could happen if global warming were to continue?
a. Changes in global winds and rainfall b. Rise in ocean temperatures c. Decrease in dissolved gases d. All of these choices
In a mercury barometer, atmospheric pressure can be measured in units of
A) time. B) velocity. C) length. D) force. E) mass.
The chemical formula of methanol is CH3OH. How many unshared electron pairs are associated with a molecule of methanol?
A) 1 B) 2 C) 4 D) 6