Fill in the blanks with appropriate words:
(i) Small pieces of stone can be removed from rice by__________.
(ii)___________ are obtained from stalks by threshing.
(iii)Husk from wheat flour is generally removed by__________.
(iv)The process of settling of heavier particles is called__________.(iv)Filtration is helpful in separating an insoluble __________from a __________.
(i) handpicking
(ii) grains
(iii) sieving
(iv) sedimentation
(v) solid, liquid