Question

Activity-5 Biodegradable and Non-biodegradable Materials Find out biodegradable and non-biodegradable material used in day to day life. Procedure:1. Find out different types of waste materials.2. Find out their physical and chemical properties (Reaction towards water and combustion reaction) Extended to two days for 20 Minutes each day3. Find out which type of harmful gases come out after burning of waste materials.4. Categorise them into biodegradable and non-biodegradable on the basis of their properties.5. Think about how you can reduce, reuse, recycle and recover (4R's principle) on biodegradable materials and write about

Answer 1

biodegradable :  Kitchen wastes,peels of vegetables and fruits,egg shells etc
Non biodegradable : plastic , polythenes , etc