Pokémon Trainer N is in the Isshu or Unova region, if you're talking generally. Specifically depends on where you are in the game.
train good pokemon that's all you can really do
none,however N has zoroark
trainer n he beats alder
To be a Pokemon Trainer, you have to own and train pokemon.
There is no Trainer Hill in Pokemon Ruby. Trainer Hill is only in Pokemon Emerald.
When that happens you've finished the game, nothing to do after.
The first trainer on the way to the Pokemon league has a luminion.
Beat clasic mode as the Pokemon Trainer to get the Pokemon Trainer trophy.
If you train your pokemon or use cheats you can be the best trainer.
It is a wild Pokemon, so no, it does not belong to a trainer. You can't catch other trainer's Pokemon.
after entering the code go to whatever trainer you want to battle and try to catch there Pokemon
After the elite four, N will reveal it to you. Then you will battle N and the game ends. There is much more you can do and trainer battles are very hard.