Question

why must we use soap and whater for bathing​

Answer 1

Explanation:

If you add soap and swish it around, the layers will combine, because soap is a surfactant (it decreases the surface tension of water). Soap molecules have two sides. One side dissolves in water (aka hydrophilic).. (aka water-attracting) and the other side dissolves in fat (aka hydrophobic) (aka water-repelling).