Dinu's friend Shiney never eats the home-made food which her mother so lovingly prepares for her. Instead she devours the junk food which some of her friends bring to school. Shiney throws the home-made food into the dustbin to avoid being rebuked by her mother. Dinu tries to point out to her about the ill-effects of such food but Shiney turns a deaf ear to it. How would Dinu explain it to her now?
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(a) Garbage substances like broken glass, aluminium wrappers, plastic items, polythene bags, which are non-biodegradable cannot be converted into compost by the redworms.
(b) Yes, saprophytic organisms such as moulds (white, black or greyish cottony patches) and bacteria (which can be seen under microscope) that help in decomposing biodegradable substances.
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