Converging warm winds over warm ocean waters are the starting point for which of the following?

a. thunderstorm
b. tropical cyclone
c. tornado
d. midlatitude cyclone

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The answer is Tropical Cyclone. A tropical cyclone with maximum sustained winds of 74 mph (64 knots) or higher. In the western North Pacific, hurricanes are called typhoons; similar storms in the Indian Ocean and South Pacific Ocean are called cyclones.

Depending on how the continental plates move it can cause a continental scale shift.