all you need to do is make yourself known depending on your strengths you should be able to land yourself in the Motocross career.
Easy, get a motorcross bike, practice, get good and join your local club and you carry on from there
Motorcross is competed in, all around the world, at various motorcross tracks
Motorcross is popular EVERYWHERE but mostly i would say America and the UK
Well, you don't 'play' motorcross! You ride it, and you do this at any outdoor or indoor tracks.
In the 1800s
no
British
well it depends on who but football players at an average do make more $ than motorcross bikers.
out of boredom, something different to do.
falling down and death
about 70mph
ride dirtbikes?! lmfaoo.