You can teach flamethrower to flareon by using the TM.
A typlosion can learn explsion
Yes he does, at level 54.
Moltres, flareon, (the charmander evolutions), vulpix, ninetails, mankey, primeape, ponyta, rapidash, and arcanine are some of them. Not all fire types can learn this move (like magmar)
Dragonair does not learn Dragon Rush in Pokemon Leafgreen. However, it can learn the move in Pokemon Diamond, Pearl and Platinum at level 39.
learn how to spell.
All Pokemon with a water-type can learn it. There are some other Pokemon that can learn it, but mostly water-Pokemon.
It can't learn that move cause it doesn't exist in leafgreen.
he can learn zap cannon
No.
the ferry at velmiron
Flareon doesn't learn heatwave naturally by level. This move has to be taught to the pokemon by a move tutor. A move tutor can teach this move at any level
Any ghost type Pokemon can learn it.