An air mass thunderstorm rarely lives long enough to create very severe weather because:
A) wind shear causes the storm's updraft to become tilted.
B) there is rarely enough moisture available to keep the storm alive for longer than 30 minutes.
C) the atmosphere is generally fairly stable when these storms develop.
D) the downdrafts quickly become strong enough to stop the updraft and influx of moisture to the storm.
D
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It is predicted by demographers that how many people will live in the North American Region by the year 2050?
A) 423 million B) 270 million C) 323.9 million D) 41 million E) 464 million
Afghanistan
A) has a long history of ethnic conflict. B) is divided roughly in half between Shiite and Sunni Muslims. C) was a peaceful country until the Taliban gained control of the government. D) is composed mostly of the Afghan ethnicity. E) includes Abkazians and Ossetians.
In Queensland, Australia, cactus moths (Cactoblastis cactorum) ________
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Sri Lanka as a whole is the most densely populated country in the Asian region
Indicate whether the statement is true or false