Yes
You get a special orb from Mr. Pokemon when you receive the National Dex, defeat Red on top of Mt. Silver and have received a Kanto starter from Prof. Oak.
You get Groudon in Pokemon Heart Gold by trading with somebody who's found Groudon in Soul Silver. You can't find Groudon in Heart Gold, you find Kyogre. Soul Silver players find Groudon.
you can only get red orb(groudon) in soul silver
Groudon doesn't evolve... Sorry
groudon appears in soul silver.
at level 50.
u need 2 either catch groudon on soul silver and trade it onto heart gold yourself or u can find some1 else who has a groudon on soul silver and trade with them.
yes
There is latios and groudon.
The Embedded Tower.
no, groudon is available in soul silver only, so you must trade from soul silver, however if you use cheats, the groudon will not unlock rayquaza.
No so migrate a groudon from ruby or emerald to have it.
Groudon is in Pokemon Soul Silver. In order to get a Groudon, you must trade to get one. Once you do you can get Rayquaza if you have Kyogre, too.