First, it is virtually safe from soil pollutants, since the plants are grown without soil using water based nutrient solutions.
(it; is; virtually safe from soil pollutants; since the plants are grown without soil using water based nutrient solutions) (the plants; are grown; ) (soil; using; water; based nutrient solutions)
it the plants soil
is are grown using
virtually safe from soil pollutants since the plants are grown without soil using water based nutrient solutions
water based nutrient solutions