Which one of the following is not an example of a separation?

Write the correct method of separation instead of the wrong method given in the following statement. 
    The method of converting liquid into vapour is called condensation.

The process by which a solid changes directly into gas is called

In evaporation, water changes into

A mixture is a / an

I put dirty water into a funnel with a paper lining. Clean water comes out of the funnel into my beaker and solid dirt gets behind on the paper. This is an example of

A pure substance is made up of

Sieving can be used only when the components of the mixture have

During the sedimentation process, the clear liquid above the sediment is a called .........

The mixture of oil and water can be separated by