Which one of the following is used in making 'Bullet proof Jacket'?
A. Fibrous glass
B. Gun metal
C. Lead
D. Laminated glass
Answer: Option D
A. Fibrous glass
B. Gun metal
C. Lead
D. Laminated glass
Answer: Option D
The fibers, such as nylon and polyester, that are made from chemical substances are called:
A. Natural fibres
B. Wool
C. Synthetic fibres
D. Silk
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