Question

by which process yarn are made from fibres

Answer 1

There are three major spinning processes: cotton, worsted or long-staple, or wool. Synthetic staple fibers can be made with any of these processes.

Answer 2

$spinning \: is \: the \: process \: by \: which \: yarn \: are \: made \: from \: fibres \\ hope \: it \: helps \: you$