Very heavy rainfall amounts are often recorded when a hurricane or tropical storm moves over land. Why do these storms produce so much rain?
What will be the ideal response?
ANSWER: ?Hurricanes can be described as an organized mass of thunderstorms that are an integral part of the storm’s circulation. Near the surface, moist tropical air flows in toward the hurricane’s center. Adjacent to the eye, this air rises and the water vapor condenses into huge cumulonimbus clouds that produce heavy rainfall, as much as 15 cm (6 in.) per hour or more. Near the top of the clouds, the relatively dry air, having lost much of its moisture, begins to flow outward away from the center. This diverging air aloft actually produces a clockwise (anticyclonic in the Northern Hemisphere) flow of air several hundred kilometers from the eye. As this outflow reaches the storm’s periphery, it begins to sink and warm, inducing clear skies. In the vigorous convective clouds of the eyewall, the air warms due to the release of large quantities of latent heat. This produces slightly higher pressures aloft, which initiate downward air motion within the eye. As the air descends, it warms by compression. This process helps to account for the warm air and the absence of convective clouds in the eye of the storm.
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Which of the following statements about the geopolitical relationship between the United States and Latin America is correct?
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Someone has offered you shares in a sure-shot wildcat oil-drilling venture in the Sierra Nevada of
California. Which of the following is the most important reason you should reject his shady offer? a. The Sierra Nevada is composed of granitic and metamorphic rocks. b. There is no prior oil or gas production in California. c. Drilling is prohibited in the entire Sierra Nevada because it is all national forest. d. Oil and gas production only occurs at present day plate boundaries. e. Movement along the San Andreas fault has caused all existing oil to leak to the surface.
Some of the African region's current problems can be traced back to the colonization of the continent, an event sometimes referred to as the mistake of 1914 . List some of the major colonial powers in Africa in the early 1900s
How does tobacco use increase vulnerability to other hazards?
What will be an ideal response?