It is impossible to say for certain, bu tornadoes have probably been occurring on earth since the Precambrian time hundreds of millions, if not billions of years ago.
Tornadoes usually last only a few minutes, some only for seconds. However, a few tornadoes can go for a couple of hours.
No. Tornadoes do not damage the atmosphere.
Nearly all tornadoes in the southern hemisphere do. However in the northern hemisphere most tornadoes rotate counterclockwise. A small percentage of tornadoes rotate opposite of what is normal for their hemisphere. These are called anticyclonic tornadoes.
Tornadoes in the southern hemisphere spin clockwise with the exception of rare anticyclonic tornadoes.
You can't get rid of tornadoes. They dissipate naturally.
Tornadoes can clear out old vegetation, allowing new growth.
The only way tornadoes might be beneficial is that they can clear out old trees, allowing new growth.
Tornadoes usually last only a few minutes, some only for seconds. However, a few tornadoes can go for a couple of hours.
Tornadoes are generally damaging to plants, but as with any event such as that, andy old, sick, or dead vegetation remved by a tornado leaves room for new growth.
It is difficult to find any pontential positive effects. However, like other storms, tornadoes are able to clear out old vegetation, allowing for new growth.
Tornadoes in the U.S. are called tornadoes.
They are not. Tornadoes frequently cause property damage and can kill and injure people. They can clear out old vegetation, allowing for new growth, but this benefit is minor compared to the harm caused.
Tornadoes are sometimes divided into "weak" tornadoes "strong" and "violent" tornadoes. Weak tornadoes are those rated EF0 and EF1. Most tornadoes are weak. Strong tornadoes are those rated EF2 and EF3. Violent tornadoes are those rated EF4 and EF5. They are the rarest of tornadoes, only about 1% of tornadoes are this strong.
It depends on what you mean by extreme. Tornadoes of EF4 and EF5 tornadoes, however are often referred to as violent tornadoes. These account for about 1% of all tornadoes.
Tornadoes don't get named, Hurricanes do, but Tornadoes don't.
No. Tornadoes are dangerous.
Florida frequently has tornadoes, though several states have more tornadoes annually.