Decomposers are necessary since they recycle the nutrients to be used again by producers.
(Decomposers; are; necessary; T:since they recycle the nutrients) (they; recycle; the nutrients to be used again by producers) (the nutrients; to be used; T:again; by producers)
Decomposers they the nutrients
are recycle to be used
necessary T:since they recycle the nutrients
the nutrients to be used again by producers
T:again by producers