You need to trade from white
You cannot, you have to trade from white
Yes.
stupid Aron is a trainer not a Pokemon
Aron is a Rock and Steel type pokemon.
You can find Aron only in Diamond.
you can either get it from previous games or trade it over from pokemon white. see serebii.net for more info.
Aron-->Lairon-->Aggron
If I remember correctly, you could get an Aron at the Cave Pokemon Hot-Spot.
Aron is found in the Granite Cave.
It cannot as of yet. Unless you transfer it from Black 2/White 2 because Aron can learn it from a Move Tutor.
Aron evolves into Lairon at level 32.
His known Pokemon are Aron, and Aggron.