Question

Winnowing is used for separation of:

• A. Homogeneous solid-solid mixtures
• B. Homogeneous solid-liquid mixtures
• C. Heterogeneous solid-liquid mixtures
• D. Heterogeneous solid-solid mixtures

Answer 1

The correct option is D Heterogeneous solid-solid mixtures

Winnowing is a farming method developed by ancient people for separating grain from the chaff. It is also used to remove weevils or other pests from stored grain. Threshing, which is the loosening of grain or seeds from the husks and straw, comes beforewinnowing. It is used for heterogeneous solid-solid mixtures.