Which of the ,following groups contain only biodegradable items? (a) Grass, flowers and leather (b) Grass, wood and plastic (c) Fruit-peels, cake and lime juice (a), (c) and (d).
So, the correct answer is, 'Both B and C (Wood, grass, fruit-peels, cake and lime juice)'. Note: Waste products that are and can be destroyed by natural factors such as microbes (e.g. bacteria, fungi, etc.), abiotic elements such as temperature, UV, oxygen, etc., are biodegradable waste materials.