what do the starters evolve into in pokemon black and white?

Answer 1

Tepig evolves into Pignite, which evolves into Emboar.

http://bulbapedia.bulbagarden.net/wiki/Tepig

 

Oshawott evolves into Dewott, which evolves into Samurott.

http://bulbapedia.bulbagarden.net/wiki/Oshawott_(Pok%C3%A9mon)

Snivy evolves into Service, which evolves into Serperior. http://bulbapedia.bulbagarden.net/wiki/Snivy_(Pok%C3%A9mon)