Tropical cyclones (aka hurricanes in the Atlantic) are intense low-pressure systems characterized by heavy rain and high winds. When a tropical cyclone passes an area, however, there are generally several days of clear, dry weather
Why might this occur?
A) The cyclone has sucked up all the moist air around it, leaving dry air behind.
B) The hurricane carries a cold front with it, which carries dry air.
C) The spiral arms of the hurricane are storm fronts, and each carries descending air behind it.
D) The cyclone must have an outflow aloft, which feeds descending air surrounding the storm.
D
You might also like to view...
Humankind has adapted itself to varying conditions through the evolution of
A) environmental determinism. B) culture and technology. C) avoiding racial interbreeding. D) living in temperate environments.
The second phase of speciation, which involves changes in gene pools, is called
A. geographic isolation. B. extinction. C. reproductive isolation. D. adaptive radiation. E. convergent evolution.
In 1987, 36 nations meeting in Montreal, Canada, developed the Montreal Protocol to reduce production of
a. carbon dioxide b. nitrous oxide c. CFCs d. toxic wastes e. halons
Suppose a west wind of 20 knots blows over a coastal region which is densely covered in shrubs
If this same wind moves out over the middle of a large calm lake, its speed and direction would probably be: a. greater than 20 knots and more northwesterly. b. less than 20 knots and more northwesterly. c. greater than 20 knots and more southwesterly. d. less than 20 knots and more southwesterly. e. less than 20 knots and westerly.