no
You can 'MIGRATE' Pokemon but, I don't think that you can trade them because the sapphire version is for the GBA and Pokemon Soul Silver is for the NDS.
No, you cannot
You have to trade Kyogre from Pokemon Sapphire, and you must trade Rayquaza from Pokemon Emerald.
NO, unfortunately Pokemon blue, red and yellow are all first generation Pokemon games and Pokemon sapphire is third generation. You can trade Pokemon from blue to games like gold and silver, but not games like firered and sapphire.
no
No, the Metalle Serie and the Jewel Serie are not compatible on connections.
you have to trade him from soul silver or migrate him from Sapphire ruby or emerald.
trade them from Ruby, Emerald, or Sapphire, or... trade them from a friend, or... get them from the GTS.
you trade sunkern from Pokemon gold/silver/crystal and evolve it with a sun stone
Nope. sorry
You have to use the Pal Park option which is only available after obtaining the National Pokedex. Even then it isn't trading, you are transferring Pokemon from Sapphire to SoulSilver.
No you cannot trade from Sapphire to Platinum. The closest thing that you can do to that is migrate from Sapphire to Platinum.