what do you mean, "how"? use non-water,fire,grass or electric-type moves and you'll be fine. Feraligatr's Slash is a good move, and Electric-type or Grass-type moves will work on Horsea and Seadra.
In the original Pokemon Silver you had to beat the 8th gym leader, Claire, then she allowed you to pass.
go to the next town and face Claire she has dragon Pokemon so use ice Pokemon and dragon type moves
whenever u beat team rocket at the warehouse in goldenrod
you battle them in the dance center after you defeat Claire, the last gym leader in johto
Well Claire has dragon types so you need Ice types to defeat her.
if you teach one of your Pokemon waterfall and you beat the dragon gym leader Claire you just press A at the waterfall and your Pokemon climbs it for you
You beat all of her Pokemon. You beat all of her Pokemon.
Claire is the final gym leader in Pokémon Silver, Gold and Crystal. She can be challenging, to beat her you could use an ice type.
claire
Go to Kanto, beat the gyms, go to Mt Silver and beat Red.
Red does not reappear after you beat him.
Go to the Dragon's Den and take the test from Lance