Q 4 Write a paragraph in your own words on-
(d) Threshing
In the harvested crop, the grain seeds need to be separated from the chaff. This process is called threshing. This is carried out with the help of a machine called ‘combine’ which is, in fact, a harvester as well as a thresher.
Farmers with small holdings of land do the separation of grain and chaff by winnowing