The best evidence of vertical wind shear in this development of a multi-cell thunderstorm is at
A. A.
B. B.
C. C.
D. D.
Answer: C
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Equatorial regions are characterized by a ________ pressure system and ________ air flow
A) high, descending B) neutral, no C) high, ascending D) low, ascending E) low, descending
Groups of scientists like the International Panel on Climate Change and the U.S. National Academy of Sciences conclude that ____.
A. the world is descending into an ice age B. climate change is caused primarily by human activities C. sea level has risen by 7 meters over the past 100 years D. atmospheric warming is caused by melting glaciers E. it is uncertain whether climate change is part of a natural cycle of warming and cooling
Which of the following can drive up food costs?
A. Exporting food for higher profits B. Futures markets C. Floods, droughts, and storms D. Non-food end use of commodity crops, such as ethanol production from maize E. All of these can cause increases in the price of food.
True/False: Wind is driven by vertical difference in pressure. The vertical pressure differences are caused by the uneven heating of the Earth's surface.
a. True b. False