Water-type Pokemon are weak against Grass and Electric-type moves.
Water and Grass are 4x effective and Ice, Fighting, Ground and Steel are 2x effective!
Ice, grass, and water.
in water is grass and electic in ground water and ice
Fire, Ground & Fighting. There may be some Pokemon that are part steel but are resistant or immune to these types. For example Skarmory is immune to Ground types because it is part flying.
Dragon types(Garchomp, Haxorus etc) Ice types (Froslass, Weavile etc)
water
Earth and water Pokemon are good against electric Pokemon.
Water, rock, and ground type are all super effective against fire type pokemon.
Water
The most effective in rock type Pokemon is water Pokemon ofcourse.
The first guy has dark Pokemon. Fighting is super effective against dark. The second guy has ghost Pokemon. Psycic is super effective against, but beware: ghost is super effective against psycic. The third guy has ice Pokemon. Fire obviously is super effective against Ice. The last guy has dragon Pokemon. Dragon and ice are super effective against dragon. The champion has water Pokemon, but one of his Pokemon is water and ground. Electric is very good against water, but it doesn't effect his water and ground Pokemon. Grass is very good to use against his water and ground Pokemon.
Water and Grass attacks are super effective against Onix.
bug Pokemon arent very effective against water Pokemon therefore if you have water Pokemon then you can win easily against bug ones. I think this is right because in real life bugs die in water and one time I was on Pokemon sapphire and I went against a bug Pokemon with water and I won in one hit!
Ground and rock Pokemon.
yes
Water and Grass are 4x effective and Ice, Fighting, Ground and Steel are 2x effective!
Fire and steel types are super effective against Ice Pokemon. Electric, although super effective against water, do only normal damage to Ice Pokemon