Classify the following fibres as natural or synthetic:

Nylon, wool, cotton, silk, polyester, jute

The fibers are classified in the following table: 

Natural fibers

wool, cotton, silk, jute.

Synthetic fibers

nylon, polyester.

The natural fibers are those which are obtained from the plants,  animals or any other natural source.

The synthetic fibers are those which are man-made fibers.