Question

Dropping the mixture on the ground from a height in blowing wind is called __________.

• A. threshing
• B. winnowing
• C. tilling
• D. none of these

Answer 1

The correct option is B

winnowing

The correct option is B.
Explanation of the correct option:

1. Winnowing is the process of separating grains from chaff and hay with the help of wind.
2. When grain is made to fall from a height, it falls straight on the ground as grains are heavier than chaff and hay.

Explanation of the incorrect option:
Option A:

1. Threshing is one of the important steps in grain preparation after reaping(cutting).
2. The process of beating out grains from harvested crop plants is called threshing.

Option C:

1. The process of loosening and turning the soil is known as tilling.
2. It is done with the help of a plough. A plough is a tool made up of wood and iron which is drawn by a pair of bulls or other animals.

Final answer:

Dropping the mixture on the ground from a height in blowing wind is called winnowing.