Stone can be separated from the rice by
Sieving
Handpicking
Threshing
Winnowing
The correct option is
C
The size of the stone is larger than that of rice. Hence when the difference in size is huge, handpicking is 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
Question 6
While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?
(a) Threshing
(b) Sieving
(c) Winnowing
(d) Filtration
What is winnowing, sieving, threshing, hand picking