Question

define winnowing .what is principle of using winnowingas a method of septation​

Answer 1

Answer:

winnowing is an agricultural method developed by ancient cultures for separating grain from straw. It can also be used to remove pests from stored grain. Winnowing usually follows threshing in grain preparation.

This technique is performed using wind or air. The light particles gets blown away and thus gets separated from the heavy substances. This is the principle that is used in the process of winnowing.