No, it is the other way around: thunderstorms cause tornadoes.
Yes. In fact a thunderstorm is the only thing that can cause a tornado.
No. It is the spinning air that forms a tornado.
Because the angle of a strike of Lightning can bring massive wind storms that cause a tornado.
The air inside a tornadic thunderstorm (a storm that produces a tornado) does spin. But it is that spinning air that causes the tornado, rather than the tornado starting the air spinning.
Yes, a tornado can come from a thunderstorm. In fact, a tornado cannot be caused by anything other than a thunderstorm. One key facotrs is that the thunderstorm must have a rotating updraft.
They are the same because they both are classified as storms and can cause damage via wind. They are different because a thunderstorm does not have a funnel of wind like a tornado. A tornado itself does not produce rain or lightning, but the thunderstorm that spawned the tornado can. Also, the winds in a tornado are more violent than those just caused by a thunderstorm.
wind shear causes the formation of a tornado if you have a strong thunderstorm.
A supercell is the kind of thunderstorm most likely to produce a tornado.
A tornado/thunderstorm watch means that weather conditions are good for tornado/thunderstorm. A tornado/thunderstorm warning, however, means that conditions are extreme and a thunderstorm or tornado is likely. Conditions for either storm are very good at this stage.
a tornado is formed by a thunderstorm
A tornado descends from the base of a thunderstorm.
Hurricanes themselves are much larger than any thunderstorm or tornado.