What changes happen to materials when they are disposed of?
Answer (1)
1. Biodegradable materials – like fruit peels or paper rot and decompose. They break down naturally with the help of microorganisms.Ex: Banana peel becomes part of the soil.2. Non-biodegradable materials – like plastics or glass stay the same for years, causing pollution.Plastic bottles stay for hundreds of years in landfills.3. Metals – might rust when exposed to moisture.Iron cans disposed in open air may form rust (chemical change).4. Some materials are recycled, like glass, aluminum, or paper, and are processed to make new products.
