Solution:
Silk and wool fibres are obtained from animals.The fibres that come from plants and animals are known as natural fibres. Fibres obtained from plants are cotton and jute. Two fibre forms that come from animal sources are silk and wool. Wool is made from the fur of animals like goats, but silk is made from the cocoons of silkworms. Alpaca, llama, and camel hair are also treated to produce wool. Sheep are primarily raised in India for their wool.
