15. What is meant by biodegradable and non-biodegradable materials? Give examples of two biodegradable and two non-biodegradable materials.
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Examples of biodegradable substances are dead plants and animals, their waste, fruits, vegetables, flower, paper, etc., while non-biodegradable substances include chemicals, paints, plastic, rubber, toxic, plastic, metals, etc.
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Answer:
Examples of biodegradable substances are dead plants and animals, their waste, fruits, vegetables, flower, paper, etc., while non-biodegradable substances include chemicals, paints, plastic, rubber, toxic, plastic, metals, etc.
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