How did plastics become the material of choice for so many varied applications?

Polythene bags are commonly used as carrying bags but their use is being discouraged these days. Explain.

How is polyester made? State its two characteristics and uses.

Differentiate between thermoplastics and thermosetting plastics. Give two examples of each.

Why rayon is called a semi-synthetic fibre? State any two characteristics and uses of rayon.

State four steps that we can take to protect our environment from plastic-related pollution.

What are synthetic fibres? State any two advantages and disadvantages of synthetic fibres.

Hitesh wants to learn swimming. He bought his swimming costume and cap. What kind of material should these be made of and why?