Humus is the remains of decayed animals and plants that have become part of the soil which adds nutrients needed for plant life.
(Humus; is; the remains of decayed animals and plants) (decayed animals and plants; have become; part of the soil) (the soil; adds; nutrients needed for plant life) (nutrients; needed; for plant life)
Humus decayed animals and plants the soil nutrients
is have become adds needed
the remains of decayed animals and plants
part of the soil
nutrients needed for plant life
for plant life