The primary responsibility of air traffic controllers is the separation of aircraft. They control traffic in and around airports and in the terminal and en route airspace in between. Controllers speak directly with pilots, notifying them of traffic or weather in there vicinity.
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Explanation:
Washington Irving was an American short-story writer, essayist, biographer, historian, and diplomat of the early 19th century.
James Fenimore Cooper was an American writer of the first half of the 19th century. His historical romances depicting frontier and Native American life from the 17th to the 19th centuries created a unique form of American literature.
Henry Wadsworth Longfellow was an American poet and educator whose works include "Paul Revere's Ride", The Song of Hiawatha, and Evangeline. He was also the first American to translate Dante Alighieri's Divine Comedy and was one of the Fireside Poets from New England.
D. Air pollution is not as much of a problem there
The answer is: one
Approximately, motor vehicle crashes made up around 18% of death on that age group (since younger people are much less likely to die from illness). A large portion of those death are strongly correlated to driving under influence of alcohol or taking away attention from the road while driving (such as using phone)