Multiple choice

Which of the following substances can be separated by wind?

  1. Husk from grains

  2. Grains from stalks

  3. Stones from grains

  4. Sugar from rice and water

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Winnowing is a method in which the heavier particles are separated from the lighter ones due to the difference in their weight. Separation of husk from grains is done using this method.