Soils Soil is one of the most important earth materials we encounter each day, but finding an exact definition of soil is difficult.
(Soils Soil; is; one of the most important earth materials) (the most important earth materials; encounter; T:each day) (finding an exact definition of soil; is; difficult)
Soils Soil the most important earth materials finding an exact definition of soil
is encounter is
one of the most important earth materials
T:each day
difficult