Plant or animal wastes contain compounds that must be broken down (decomposed) so the nutrient elements contained in the waste can replenish the soil and be reused for crop growth.
(Plant or animal wastes; contain so; compounds that must be broken down (decomposed) so the nutrient elements contained in the waste can replenish the soil and be reused for crop growth) (the nutrient elements contained in the waste; be reused; for crop growth) (the nutrient elements; contained; in the waste) (the nutrient elements contained in the waste; can replenish; the soil)
Plant or animal wastes the nutrient elements contained in the waste the nutrient elements the nutrient elements contained in the waste
contain so be reused contained can replenish
compounds that must be broken down (decomposed) so the nutrient elements contained in the waste can replenish the soil and be reused for crop growth
for crop growth
in the waste
the soil