All of the following statements are true of tornadoes except a. their movement is unpredictable. b. they occur most often in tropical regions. c. they can develop from thunderstorms. d. they can develop from hurricanes.

C. They can develop from thunderstorms.

Explanation:

Most of the storms develop from the thunderstorms as they need the energy in the form of the warm and moist air and they get this from the supercells that are formed in the thunderstorms. The warm air rises and the cold air sinks. Often accompanied by the hail storms. and the winds blow counterclockwise in the northern hemisphere and opposite in the southern hemisphere. And the wind speed reaches around 180 km per hour. Thus are associated with heavy rains, darkness ad the cloudy atmosphere.  They also have similar characters to the dust devils and are a vertical flowing column of air, and most are known to occur in the northern hemisphere on the eastern side of the U.S.