Question

1. Lead glass
2. Bakelite
3. Thermocol
4. Optical glass
5. Polypropylene
(
(
(
(
(
) A) Plates
) B) Mattresses
) C) Electrical bulb
) D) Electrical switch
) E) Lens​

Answer 1

Answer:

1 e

2 d

3 a

4 c

5 b

Explanation: