well if you mean chewing tobaco it can cause much more problems then nomal cigerettes because your holding it in your mouth cause damage to your gums and teeth I say take a look at medical sights and...
i think that would be a matter of opinion... do you like smoking more than you like chewing? as far as health goes more people die from smoking tobacco but there are plenty of nasty side effects you...
It all depends on how it is smoked.. If it's smoked with tobacco, then of course it is, because then you're smoking both.. For your physical health, Tobacco it worse! For your mental health Marajuana...