Ground type Pokémon beat fire, steel, rock, electric and poison type Pokémon.
Ground type Pokemon can beat Electric type Pokemon easily.
You can beat it with Ground type Pokemon or Fire type Pokemon easily.
Ground
Psychic and Ground
Get a ground type Pokemon like golem or graveler
Use a fighting, fire, or ground Pokemon.
Rock ground and water
a fire type pokemon or a ground type
A Poison/Ground-type Pokemon is weak to Psychic, Ground, Water, and Ice-type attacks. Nidoking and Nidoqueen are the only two Pokemon with this typing.
ground and physic Pokemon are super effective against poison Pokemon
you need to have all ground type Pokemon to beat koga i would say a a nidoking of nidoquenn you need to have all ground type Pokemon to beat koga i would say a a nidoking of nidoquenn
Ground type Pokemon are super-effective against electric so I suggest that you use Pokemon of that type.