Farmer separate the mixture of wheat grains and husk by the process of
Farmer separate the mixture of wheat grains and husk by the process of
The correct option is B winnowing
The explanation for the correct answer - (B) Winnowing
Winnowing – The method by which lighter components of a mixture are separated from heavier components with the help of air or by blowing is called winnowing. The method is based on differences in the weight of components.
Farmers use this technique to separate the husk from the seed.
The explanation for the incorrect answers-
(A) Sieving - The method by which the components of a mixture can be separated from each other based on differences in their sizes with the help of a sieve is called sieving.
For example – fine wheat flour can be separated from coarse flour with a sieve.
(C) Filtration - The process by which the insoluble or suspended particles of a mixture are separated from the liquid by using a porous membrane called a filter is called filtration.
For example – the separation of sand and clay particles from water by passing it through a filter paper.
(D) Hand-picking - The method by which the components of a mixture can be separated by just picking by hand is called hand-picking. The difference in size and colour of components form the basis of separation.
For example – separating small stones and straw from grains.
Hence option (B) is correct. Farmers separate the mixture of wheat grains and husk by the process of Winnowing.
winnowing
The explanation for the correct answer - (B) Winnowing
Winnowing – The method by which lighter components of a mixture are separated from heavier components with the help of air or by blowing is called winnowing. The method is based on differences in the weight of components.
Farmers use this technique to separate the husk from the seed.
The explanation for the incorrect answers-
(A) Sieving - The method by which the components of a mixture can be separated from each other based on differences in their sizes with the help of a sieve is called sieving.
For example – fine wheat flour can be separated from coarse flour with a sieve.
(C) Filtration - The process by which the insoluble or suspended particles of a mixture are separated from the liquid by using a porous membrane called a filter is called filtration.
For example – the separation of sand and clay particles from water by passing it through a filter paper.
(D) Hand-picking - The method by which the components of a mixture can be separated by just picking by hand is called hand-picking. The difference in size and colour of components form the basis of separation.
For example – separating small stones and straw from grains.
Hence option (B) is correct. Farmers separate the mixture of wheat grains and husk by the process of Winnowing.
