The process by which chaff is separated from grain is called _____.

Define the following with examples:

a. Sublimation.

b. Evaporation.

Squeeze some drops of lime into a glass of milk. You will see a whitish solid forming after some time. Place a thin cloth over a bowl and pour the liquid on it. The white solid is left behind on the cloth and liquid collects in the bowl.

_____ is the process represented by adding lime to milk.

Name the following:
The process of pouring out the liquid without disturbing the sediments.

Fill in the blank space by choosing correct words from the list given below . 
List : evaporation, churning, threshing, sieving, sedimentation, winnowing, condensation, hand-picking. 

Corn is separated from husk by the process of _____.