Who discovered the rubber making process through the vulcanisation method?
A. John Dunlop
B. Charles Goodyear
C. Macmillan
D. Newton
Answer: Option B
A. John Dunlop
B. Charles Goodyear
C. Macmillan
D. Newton
Answer: Option B
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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