Tornadoes usually don't reproduce themselves, but sometimes that can happen.
Nothing that I know of. I know it's not plants because they are living organisms. Sorry if I was of no help.
Volcanoes can grow in size and repair themselves, however they are unable to reproduce
First of all, we need real scientists answering questions not some kids who seek answers or make up lies. This isn't a good website to learn or get answers, don't use it.
