Yes it can, when Grotle evolves into Torterra at level 32 it learns earthquake, and also you can teach it using TM earthquake.
At level 32.
Torterra learns earthquake at level 32
Yes.
Lv. 51
Dragonair does not learn Dragon Rush in Pokemon Leafgreen. However, it can learn the move in Pokemon Diamond, Pearl and Platinum at level 39.
You have to use the TM10 to get earthquake. Venasuar doesn't learn it on its own
Cut,Strength,Rocksmash.
I think 73
A typlosion can learn explsion
Lv. 51
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
Yes, there are decent Pokemon that can't learn earthquake. Each Pokemon has its own strengths and weaknesses.
No.
the ferry at velmiron
Any ghost type Pokemon can learn it.
No, Butterfree cannot learn Fly.