The Pebble mill is used

A. To remove the hooks from seeds

B. To remove the webby hairs from grasses

C. To remove the awns from cereals

D. To shell the kernel

Answer: Option B

Solution(By Examveda Team)

The Pebble mill is used to remove the webby hairs from grasses.
The mill is used for removing cob-webby hairs from bluegrass and similar seeds. It has a drum rotating about a shaft, inserted off-centre at opposite ends.
The mill is loaded with seeds and smooth half-inch pebbles and turned at a slow speed until the rubbing action of the pebble rolls the fuzz from the seeds into small round balls.