Aviation Spares International A Sort Of Survey/question For Aviation Enthusiats?

A sort of survey/question for aviation enthusiats? - aviation spares international

I have some questions from people asking to sit on air shows in countries such as farnborugh (I do this for my coursework for GCSE Technology). Some questions may be a little personal. How old are you?, Which branch are you? What do you do in your spare time? What kind of gadgets do you have? General Interest?
and you think the smoke from the plane had no effect on human health and the environment than car exhaust? (Especailly air shows in the region is overloaded with planes!)