Get Lairon To Lv42 and it will evolve into Aggron
It evolves at about lvl 42 or lvl 43.
42
It evolves by happiness
Goldeen evolves at Level 33 in Ruby, Sapphire, FireRed, LeafGreen, Emerald, Pokemon X and Y and Pokemon Omega Ruby and Alpha Sapphire.
it evolves into Aggron at level 43 in Emerald, Sapphire, and Ruby. In Diamond, Pearl, Platinum Heart, Gold and Soul Silver it evolves at level 42.
No Pokemon can evolve from an Icy Rock in Pokemon Sapphire, Ruby, and Emerald. If you are talking about the later games like Pokemon Diamond, Pearl, and Platinum, the Ice Rock can evolve Eevee into a Glaceon.
You can trade with another sapphire, ruby, emerald, firered, leafgreen, Pokemon colosseum, Pokemon xd gale of darkness and Pokemon box ruby and sapphire.
Aron evolves into Lairon at Level 27 in Pokémon Ruby.
You cannot evolve Nosepass in Pokemon Ruby, Sapphire, or Emerald.
It evolves into Lairon at lvl. 32 and then Lairon evolves into Aggron at lvl. 42
Aron evolves at level 32 into Lairon, then Lairon evolves into Aggron at level 42.
42
After purifying a Pokemon, it will evolve once the conditions are met for evolution (as of Pokemon Ruby and Sapphire Versions).
Actually Pokemon Omega Ruby and Alpha Sapphire is not out yet, but I strongly believe Bulbasaur will evolve at level as usual I doubt it would change dramatically.
Skitty evolves into Delcatty through the use of a Moon Stone in Pokemon Ruby and Sapphire.
It evolves by happiness
Level 20
Pokemon Ruby has Pokemon that Pokemon Sapphire does not and Pokemon Sapphire has Pokemon that Pokemon Ruby does not.
10% in ruby sapphire and emerald