I'm not sure if this is the word you are looking for but one is...............
Scoria
the effects of volcanic action on soil formation
Volcanic soil is important because if people live near a volcano and want to farm there, they can use the fertile volcanic soil to grow their plants.
Another name for saturated soil could be soil liquefaction.
Volcanic soil is good for growing plants because the soil that forms from volcanic rocks contain nutrients that many plants need to grow.
Laterite soil
the effects of volcanic action on soil formation
Volcanic soil is important because if people live near a volcano and want to farm there, they can use the fertile volcanic soil to grow their plants.
Another name for saturated soil could be soil liquefaction.
Volcanic soil is good for growing plants because the soil that forms from volcanic rocks contain nutrients that many plants need to grow.
Magma
Laterite soil
volcanic soil is so fertile because it has silica which is very fertile.
soil
logically, another name for soil water may be, mud. i got this because if you add soil & water together you should get mu
Volcanic ash can create very fertile soil.
Ig
Topsoil is sometimes referred to as the A Horizon.