Check out serebii.net it's really useful, it tells you everything about a Pokemon and the games
Levels Pokemon evolve range from 7-55.
Levels vary from level 6 all the way to level 55. Several pokemon evolve at similar levels but a majority evolve at different levels.
Pokemon that evolve with levels have certain levels, all of them are different. Some don't evolve by levels, and either have to be happy or use an evolutionary stone.
Most Pokemon evolve by levelling up. It would be a waste of time to list all of the ones that evolve at certain levels.
if he levels up he will evolve
The levels remain the same, you raise your Pokemon to those levels to evolve them.
It depends on the pokemon.
They all evolve at different levels
no, Pokemon don't evolve there they jut grow levels
Pokemon evolve at different levels so you never really know what level it is
It depends on the pokemon you're asking about. Many evolve at different levels.
Pokemon evolve at different lvls and some might not evolve by lvls or at all. Some will evolve by items or by trading or by taking really good care of it. Lengendary Pokemon will not evolve.