that is not even real! and sora is a boy name! or is it real......... i don't know
Episode 21 of Digimon Adventure.
Her first chonological appearence is in the first Digimon movie. If you are referring to her first appearence in a proper Digimon season it happened in the 21st episode of Adventure.
digimon adventure 02 ep 7
Episode 51 of Digimon Adventure.
Episode 38 of Digimon Adventure.
Digimon Adventure 02 Episode 38: A Very Digi-Christmas
No Yggdrasil was not the mysterious entity that spoke through Kari in one episode of the first season of Digimon Adventure. Yggdrasil is from Digimon Data Squad which is a separate continuity from Digimon Adventure and therefore doesn't exist in the Digimon Adventure continuity.
Angemon evolves to MagnaAngemon in episode 52.
http://anime.thehylia.com/downloads/series/digimon-adventure-02Or go onto Funimation's website. They have the entire Digimon Adventure 02 series subtitled in English.Crunchyroll also has it.
It's in episode 21 of the season "The Crest of Kindness".
Kari (Tai's younger sister) Enters the digital world in Digimon Adventure season 1 at the end of episode 39. Her first adventure starts in episode 40.
This happens in the japanese episode 48. The American dubbing company excluded this part from the english dub I believe