They can't. People cannot prevent tornadoes.
No, tornadoes may be predicted to some degree but not prevented.
Tornadoes cannot be prevented.
Nothing. We can prepare for tornadoes to reduce the number of people killed or injured, but we have no way of stopping or controlling them.
People really don't have the power to help cause or prevent tornadoes, at least now. It's possible that tornadoes might be affected by anthropogenic climate change somehow, but we aren't able to attribute that one way or another currently.
Nothing. We cannot prevent tornadoes.
There is nothing that we can do or build that can prevent tornadoes.
Nothing. It is impossible to stop tornadoes. We can only warn people and help them prepare.
Meteorologists (weather scientists) study tornadoes and how to predict them, but there are no real efforts to try to prevent them. That is impossible.
They don't. Farmers get hit by tornadoes just like other people do. It's just not heard of as much because a tornado hitting a farm is less likely to make big news than one hitting a town. There is no way that people can prevent tornadoes.
No. A tornado would be a major distraction that would prevent you from doing your homework.
There is no way to prevent tornadoes, but warning systems have been in place for decades.
Nothing. Tornadoes cannot be prevented.