Which one of the following is not a natural fibre? A. Terylene B. Jute C. Wool D. Flax

Terylene
Jute
Wool
Flax

The correct answer is A. Terylene.

Terylene is a synthetic fiber made from terephthalic acid and ethylene glycol. It is a type of polyester, which is a group of polymers that are made from the esterification of a carboxylic acid and an alcohol. Polyesters are commonly used in clothing, textiles, and other products.

Jute, wool, and flax are all natural fibers. Jute is a bast fiber that is obtained from the stem of the jute plant. It is a long, strong fiber that is used to make a variety of products, including burlap, twine, and carpet. Wool is a hair fiber that is obtained from sheep. It is a soft, warm fiber that is used to make a variety of products, including clothing, blankets, and carpets. Flax is a bast fiber that is obtained from the flax plant. It is a long, strong fiber that is used to make a variety of products, including linen, canvas, and paper.