Question

Housewives sometimes use the method of ______________ to remove unwanted substances from eatables like rice and pulses.​

Answer 1

Answer:

.................picking up the waste........

....... hand picking........

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Answer 2

Answer:

Housewife use the winnowing flatter, which is a flat container on which rice or pulses are kept.

Explanation:

Then it is in air, where the lighter particles of unwanted substances get blown away by air, and the useful rice or pulses are kept.

It is very useful to separate husks from rice. Winnowing is a process where, light weight substances are separated from heavy weight substances using gravity and air dispersal characteristics.  

Housewives use a flat Winnowing tray that contains the substances. Then using air dispersal and gravity, they separate unwanted substances from the usable rice and pulses.