"A powerful manifestation of the earth atmosphere energy budget and moisture system is the tropical cyclone, which originates entirely within tropical air masses. The tropics extends from the Tropic of Cancer at 23.5°N, to the Tropic of Capricorn at 23.5°S containing the equitorial zone between 10°N and 10°S. Approximately 80 tropical cyclones occur annually world wide. Some are powerful enough to be classified as hurricanes and typhoons.
Cyclonic systems forming in the tropics are quite different from mid latitude cyclone because the air of the tropics is essentially homogeneous, with no fronts or conflicting air masses. Tropical depression intensify into tropical storms as they cross the Atlantic.
A rule of thumb has emerged. If they mature early along their track, they tend to curve northward towards the North Atlantic and miss the United States. The critical position is approximately 40° W longitudes. Officially, tropical cyclone season is from June 1 to November 30 each year".
The tropical depression gets intensifies tropical storms after crossing-
Correct Answer: (c) Atlantic Ocean
Solution:In the North Atlantic, tropical cyclones are called hurricanes; In the North Pacific, they are called typhoons; and in the Indian Ocean, they are called cyclones. Hurricanes start as tropical depressions with wind speeds of at least twenty-five miles per hour. According to passage "Tropical depressions intensify in to tropical storms as they cross the Atlantic.