Question

What is conduction ? Why wool is a insulator and not a conductor though it gives warmth to our body when we make woolen clothes with it??

Answer 1

a substance that allow heat to flow through it is called conductor

Answer 2

those thing which passes heat and current is called conductor.and if it pass heat and current then it is called conduction.
wool is a insulator as it does not have any free electrons in it.
it give warmth as it made up of thick material.

hope it helps u