What are microbursts?
Strong surface winds produced by a narrow intense thunderstorm downdraft, capable of producing the same degree of damage as a weak tornado.
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The general term applied to warm air moving up over a colder air mass is:
A) cold front. B) overrunning. C) orographic lifting. D) warm front.
At the 2008 Olympics the Ethiopian runner Kenisa Bekele won 1.00 x 10^4 meter run in 27 minutes, 1.17 seconds. What is this speed in miles per hour? [1 mile = 1.609 km]
A) 1.38 mph B) 2.30 mph C) 12.3 mph D) 13.8 mph
Markovnikov's rule is useful in predicting the outcome for which of the following addition reactions of unsymmetrical alkenes?
A) hydration B) bromination C) both a and b D) neither a nor b
Air pollution is a recent phenomenon that did not occur until coal burning became common during the Industrial Revolution.
Answer the following statement true (T) or false (F)