Altaria is a dragon and flying type, so:
4x: ice (both dragon and flying types are weak)
2x: dragon (weakness of dragon type) and rock (weakness of flying type)
Note dragon types are resistant to electric attacks so it will not be super effective.
Ice is Altaria's greatest weakness. It is a Dragon/Flying type and Ice is super effective to both.
Ice
Ghost & Flying. I believe that's it! Not dark or bug because although they're super-effective against Psychic, they are not-effective against Fighting. And not Psychic, because though it's super-effective against Fighting, it's not-effective against Psychic.
Water and Grass attacks are super effective against Onix.
super effective is bug
Ice is Altaria's greatest weakness. It is a Dragon/Flying type and Ice is super effective to both.
Ice
Flying and Psychic are super effective against fighting
Lightning is super effective against water. I hope this helps.
Ghost & Flying. I believe that's it! Not dark or bug because although they're super-effective against Psychic, they are not-effective against Fighting. And not Psychic, because though it's super-effective against Fighting, it's not-effective against Psychic.
Water and Grass attacks are super effective against Onix.
psychic pokemons and attacks are super effective
super effective is bug
Bug Type and Fighting Type moves are super effective against it.
Rock, electric, ice, and psychic types are super effective against Crobat.
Steel is super effective against rock type pokemon.
Bug types are super effective against Dark, Grass and Psychic (x2) in Generation II-onward. In Generation I, they were super effective against Grass, Poison and Psychic.