(a) Non bio-degradable waste like pieces of synthetic cloth, polythene bags, broken glass, aluminium wrappers, nails and broken toys cannot be converted into compost by the redworms.
(b) Besides redworms there are spiders, small bugs, flies, moulds and small insects etc. can be seen in the pit. Compost is also rich of microbes which can't be seen with unaided eye.
