Yes, trampolining is a sport. It is a discipline within gymnastics, in the same way as artistic gymnastics, rhythmic gymnastics or acrobatic gymnastics is.
It should be noted that the gymnastics discipline trampolining bears little resemblance to use of trampolines as toys in back gardens or trampoline parks. It is not about throwing yourself about but is very much focused on control. It is by developing this control and awareness from the outset in more basic moves that trampolininsts are able to build up to complex multiple and twisting somersaults with relative safety.
Yeah, I believe it is. If every other activity in the Olympics is a sport then why wouldn't it be. You train just like a volleyball player or gymnast or skier would.
No, but gymnastics on a trampoline is.
no its a recreational activity
no