Question

please tell all answer​

Answer 1

1) Mixture : a substance made by mixing other substances together.

2) There are two types of mixtures: heterogeneous and homogeneous.

3) winnowing: blow a current of air through (grain) in order to remove the chaff.

4) It is used to separate grain from stalks

5) Sieving is a simple technique for separating particles of different sizes.