PoisonGround
Poison/Ground weaknesses
Poison/Ground is weak to Water, Ice, Ground and Psychic.
When Poison/Ground Pokémon are hit
2×Super effective
½×Not very effective
¼×Barely scratches it
0×No effect
Its two types separately
Multiply the two to get the result. For example, Water deals 1× × 2× = 2×.