Q23 of 25 Page 3

What are biodegradable and non-biodegradable materials?

A material which gets decomposed through natural processes , such as action by bacteria, is called biodegradable. A material which is not easily decomposed by natural processes is termed as non-biodegradable.

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21 Write some properties of plastic which make them as materials of choice 22 Write short notes on the following  a. plastic and health care industry b. plastic cookware c. Teflon d. fire proof plastic 24 Whether following materials are biodegradable or non-biodegradable: i. peels of vegetable and fruit peels, leftover foodstuff etcii. paperiii. cotton clothiv. woolen itemsv. woodvi. tin, aluminium and other metal cansvii. plastic bags 25 What are the 4 ways to overcome the problem of waste accumulation?