Question 2
What is winnowing? Where is it used?
Winnowing is the method of separating components of a mixture containing heavier and lighter components by wind or by blowing air. It is used to separate husk particles from seeds of grain.
When winnowing is used to separate grains from husk, what is the correct observation?
The term used for the process of seperation of grains from chaff is threshing whereas winnowing does the same task. So why is it that the term used is threshing and not winnowing?
Question 4
What is sieving? Where is it used?
Question 4The term used for the process of separation of grains from the chaff is called(a) sieving(b) threshing(c) winnowing (d) hand picking