Wool comes from sheep, goat, yak and some other animals. These wool-yielding animals bear hair on their body. Hair trap a lot of air. Air is a poor conductor of heat, So, hair keeps these animals warm. Wool is derived from these hairy fibres.
Wool comes from sheep, goat, yak and some other animals. These wool-yielding animals bear hair on their body. Hair trap a lot of air. Air is a poor conductor of heat, So, hair keeps these animals warm. Wool is derived from these hairy fibres.