You need to beat the phisick gym leader to use dive. use dive and surf tms on a water pkmn. go to mossdeep ity. go all the way down. go left. use surf. find water that is a little darker. use dive and follo the trail. when u get to the cavern, u will see the ship. use dive to get up.
go to the seafloor carven
you can get it in seafloor cavern
No.
No unfortunately it is not. You can catch it in Sapphire and trade it to Ruby though.
If you're asking what it is, it's earthquake. If you're asking where to find it, it's at the seafloor cabin.
You can't. Palkia is from Pokemon Pearl(Generation 4) and Pokemon Ruby is a Generation 3 game. You can transfer Pokemon from Ruby to Pearl/Diamond through the Pal Park, though.
Yes
go to victory road, sky pillar, cave of origin, and the seafloor cavern.
To get a Crobat on pokemon Ruby you must evolve your Golbat. If you do not already have a Golbat you can find them in many places such as: Cave of Origin, Meteor Falls, Seafloor Cavern, Shoal Cave, Sky Pillar, and Victory Road.
Yes, but it's a hack for Pokemon Ruby. though, I do not know the hack
Very farefully
You can't, I wish you could though