Latias is an elusive Pokémon. Latias has absolutely no set location. It can be found anywhere. (except, I believe, in caves) Any ocean, any patch of grass, any place Pokémon can be caught. Latias, if you are lucky enough to spot one, flee once its turn comes. Once it goes, you can't ever get it. I also believe it can only be caught with a master ball.
No, you can only get Latias in Sapphire and Emerald and Latios in Ruby and Emerald.
you cant. You can only catch it in Pokemon emerald, but, you cant catch latias in emerald.
Anywhere.
Yep.
Ruby cannot capture latias only sapphire and emerald can.
Latias isn't in firered, it's in ruby, sapphire, and emerald.
You can find Latias and latios anywhere in Hoenn. You just have to get lucky.
One way is to trade with another emerald or you could trade your latias (or latios) to another emerald then restart the game and choose the opsite then catch it and trade back.
you have to migrate from emerald
The only way to get a latios or latias in your Diamond or Pearl is to migrate, latios from Ruby or Emerald. latias from Sapphire or Emerald.
to check where latios and latias are in pokemon emerald, you have to go to the pokedex, if you've seen them and go to the "area'' ICON.
yes