The correct answer is cotton.Concept:Waste materials: Waste materials are either liquid or solid in form, and their components may be either hazardous or inert in their effects on health and the environment.The term waste is typically applied to solid waste, sewage (wastewater), hazardous waste, and electronic waste.Explanation:Biodegradable wasteNon-biodegradable wasteThe substances that can be decomposed by the action of decomposers like bacteria and fungi.The substances that can not be decomposed by the action of decomposers like bacteria and fungi.For example organic matter like human excreta, animal waste, dead bodies of plants and animals, leftover food items, natural fabrics like cotton, wool, etc. For example plastic, rubber, glass, artificial clothes like nylon, rayon, electronic waste like batteries, etc.Thus,Nylon - Non-biodegradableA plastic bag - Non-biodegradableCotton - BiodegradableA glass bottle - Non-biodegradable