Question

After harvesting the crop the farmer can not saperate husk from grains by handpicking give reason

Answer 1

•     generally farmers seprate rock by handpicking and husk by winnowing Reason is if they pick stones out and then winnowing,air will take light husk wit it.        

Answer 2

Answer:

After harvesting of crops , the farmer can not separate husk from the grain by handpicking because husk is a light weight substance.

It would be more time consuming, and less effective.

So, another process called winnowing is done that separates the mixture of heavier and lighter particles.

This is done by blowing of wind or air, and this is more effective and less time consuming.