The worms eat the food waste, and their castings produce a rich soil-like compost material that can be used on plants or gardens.
(The worms; eat; the food waste) (their castings; produce; a rich soil-like compost material that can be used on plants or gardens) (a rich soil-like compost material; can be used; L:on plants or gardens)
The worms their castings a rich soil-like compost material
eat produce can be used
the food waste
a rich soil-like compost material that can be used on plants or gardens
L:on plants or gardens