Question

Write the uses of woolen and Silk fibre

Answer 1

Answer:

Wool comes from sheep, goat, yak and some other animals. These wool-yielding animals bear hair on their body because hair keeps these animals warm and wool is derived from these hairy fibers.

The female silk moth lays eggs, from which hatch larvae which are called Caterpillars or Silkworms.

They grow in size and when the caterpillar is ready to enter the next stage of its life history called pupa, it first weaves the net to hold itself and swings its head from side to side in the form of figure eight (8).

During these movements of head, the caterpillar secretes fiber made of a protein which hardens on exposure to air and becomes silk fiber.