Question

People use a variety of methods to wash clothes. Usually after adding the soap, they 'beat' the clothes on a stone, or beat it with a paddle. scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessary to get clean clothes?

Answer 1

agitation is necessary to get clean clothes because sometimes there can be oil on the cloth and agitation reduces friction through which the oil can be cleaned from the clothes

Answer 2

Now the people never make use of the detergent form lather in both and hard and soft water.

Here the people can use of the different method to wash the clothes .

Basically the adding the soap and they beat the clothes on the same stone and beat it with the paddle and scrub with the brush else mixture of the agitates in washing machine.