In villages, we see women separating the grains from the chaff by throwing the grains from a certain height to fall back into a vessel. What is this process called? Explain. [3 MARKS]

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Solution

Process name: 1 Mark
Explanation: 2 Marks

This process is called Winnowing.

It is one of the methods used to separate heavier and lighter components of a mixture.

The mixture is exposed to blowing wind. The wind blows away the lighter materials, while the heavier parts fall back for recovery, hence separating the two substances of a mixture

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