Polythene is commonly used to make which of the following items?

• A. Milk bottles and containables
• B. Metal cans
• C. Glass windows
• D. Ceramic dishes

Answer: (A)

Polythene is a plastic that can be molded into bottles and containers because its long polymer chains give it a light, tough, and moisture-resistant material that’s cheap to manufacture. This combination makes it ideal for packaging liquids and foods, so milk bottles and other containables are commonly made from it. In contrast, metal cans rely on metal, glass windows rely on glass, and ceramic dishes rely on ceramic materials—each with properties like high rigidity, transparency, or heat resistance that polythene doesn’t provide in the same way.