Question

9. Which two things are made by using PVC?
10. Name two things made of melamine.
11. Which one is cheaper - plastic or metal?
12. Give one special feature of plastics.​

Answer 1

Explanation:

Aloha !

9) Pipes and electrical boards and switches.

11) Aluminium, steel

12) It can expand on heating

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@ Twilight Astro ✌️☺️♥️

Answer 2

Answer:

in making pipe ,hoses and plumbing 10. electric board , dinner set ,11. plastic, 12. More durable and non reactive