1.what causes a fire tornado to form ?

I am inclined to think that it is caused by flammable gases being released into the tornado and then being lit, but it would soon burn out, so I’m guessing that it must have a constant fluctuation of gases going into the tornado... therefore keeping the flame alive

Hope this helps you

Well to my expert knowledge and my exquisite calculations i think the the negative ion # 412 is the key to sucess

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