Just turn on all 3 switches
Charlamander needs to be traded from Pokemon Red.
Yes, Scyther will evolve in Pokémon Crystal however it needs to be holding the Metal Coat while you're trading it in order for it to evolve.
Needs citation but the immediate crystal that stands out to me is quartz
In the Pokemon Crystal games released for the Gameboy Color only the Japanese version could've received it by going to the Pokemon Communication Center after linking a Mobile Adapter with the games and beating Blue but the Communication Center's wireless services were later disabled. In the Virtual Console version of Crystal all versions can receive the GS Ball the Japanese version needs to go into the Communication Center while other versions have to go into the Goldenrod Pokemon Center however you need to beat Lance before you can get the GS Ball in the Virtual Console version.
No one needs to know that about my couzin
After you beat the gym in Cianwood....there is a lady in front of the gym....talk to her....she will tell you she is the gym leaders wife and that he needs to train more....she will give you fly as a reward for beating her wife.
eevee
Needs to be traded from Pokemon White.
the root hairs get the food that the plant needs underground.
Porygon
the switch needs to be adjusted
That indicates a fault and the switch needs replacing.