Which of the following statements about tornadoes is true? . a. tornadoes result from all thunderstorms.. b. tornadoes form only during the summer months.. c. most tornadoes have funnels taller than 105 m (344 . d. most tornadoes have wind speeds greater than 105 kph (65

A tornado is a violent column of air rotating violently on the surface of the earth. It is often accompanied by a cumulonimbus cloud or a cumulus cloud. Most tornadoes have an average wind speed of  around 110 kph or greater.

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

it doesn't. it was imagined up in the middle ages.