Separation of substance

A mixture in which the different components of the mixture are uniformly distributed,is (a)   mixture.

Mixture of Oil and water is example for (a)   mixture

Air is example for the (a)   mixture.

(a)   is the process used to separate the grains from the stalk of cereal plants like rice and wheat.

The method used to separate husk from grain by wind is called (a)  

The insoluble substance which settle down at the bottom,in Sedimentation process are called (a)  

The liquid above the sediment is called (a)  

The insoluble substance which reminds in the strainer during tea preparation is called (a)  

The process in which a liquid changes into it's gaseous form on heatingis called (a)  

Butter is obtained by this method (a)