One method of separation is not enough.Comment.

Dear student
Please find below the solution to the asked query:

One method of separation is not enough , because the method of separation depends upon the type of substances which are to be separated.Since there are a variety of substances which can be separated, there are a variety of methods as well.
For example:
1. Handpicking: ​removal pieces of stone, husks and other grains from major crop with your hand.

2. Threshing: process in which the stalks are beaten to free the grain seeds.

3. Winnowing: is used to separate heavier and lighter components of a mixture by wind or by blowing air.

4. Sieving allows the fine flour particles to pass through the holes of the sieve while the bigger impurities remain on the sieve.

5. ​When the heavier component in a mixture settles after water is added to it, the process is called sedimentation.

6. When the water (along with the dust) is removed, the process is called decantation

Hope this information will clear your doubts regarding the topic.
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