Question

explain scientific principal behind winnowing state it one application in everday life

Answer 1

Winnowing means separate of grains from the chaff

Answer 2

Winnowing is a process in which by blowing air or by natural wind, separation between the heavier and lighter particles in a mixture takes place.

It Is a very common process used in local households and farmers. Specially, for farmers, it is useful to separate the heavier grain seeds from the light husky particles.