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(a) What is meant by non-biodegradable waste materials? Give two examples of non-biodegradable wastes. (b) Which of the following materials are biodegradable? Animal bones, Iron nails, Plastic mugs, Leather belts, Silver foil. |
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Answer» (a) What is meant by non-biodegradable waste materials? Give two examples of non-biodegradable wastes. (b) Which of the following materials are biodegradable? Animal bones, Iron nails, Plastic mugs, Leather belts, Silver foil. |
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