Expand the follwoing terms: 1. Hand-picking 2. Winnowing 3. Sedimentation

Question

Expand the following terms:

1. Hand-picking

2. Winnowing

3. Sedimentation

Answer 1

1. Hand-picking: Chosen from a lot by hand.
2. Winnowing: The method of separating components of a mixture by wind or by blowing air. Ex: Husk from the grains. 
3. Sedimentation: The process of settling or being deposited to the bottom