At black city but it's hidden somewhere therE
catch "em all
You don't.
yes you have to find all of the seven to catch rayquaza in pokemon white
Unfortunately, nothing happens.
Yo mammas house
you have to find all the seven sages ,beat Cynthia ,alder and the elite four.
Not too much, go to White Forrest, catch all the pokemon. There is not any other story lines that I'm aware of
go to www.pokemon Black & White-New pokemon.com to find out.
Nothing that's it
i have been on several official cites looking for this including Pokemon wiki and serebii they list how to find the seven sages but not ghetesis so i think you cant sorry
he only is in Pokemon platinum and Pokemon black and white in Pokemon platinum you see him in jubilife city, and I think maybe at Team Galactic HQ. in Pokemon black and white after you beat the elite four, he is looking for the seven sages. after you find all seven sages he'll talk to you and he'll arrest the 7 sages. you will never see him again after that.
nothing.