Question

Raw materials for most of the natural fabrics are obtained from petroleum.

Answer 1

coal vegatabal sources and animalsorces

Answer 2

synthetic fibres for most of the natural fabrics are obtained from petrochemicals which are raw materials of petrol orgin.
A synthetic fibre is a chain of small units called monomers. these monomers combine to form large single unit called polymer.
A rayon is called artificial silk.
rayon is made of cellulose.