Question

Why does the smell of burning comes from natural fibres such as silk and wool​

Answer 1

Answer:

The fabric which burns giving a smell of burning hair will be natural silk or pure silk. Just like silk, wool is also made up of protein . So, a piece of woollen fabric also burns giving the smell of burning hair.

Answer 2

Answer:

your answer is

The fabric which burns giving a smell of burning hair will be natural silk or pure silk. Just like silk, wool is also made up of protein . So, a piece of woollen fabric also burns giving the smell of burning hair.

hope it helps you