Answer :
Hair and nails are made up of a tough protein known as keratin.
- The pH of hair and nails is slightly acidic.
- Hair, skin, and nails have a pH of approximately 5.5.
- Hair functions to keep the body warm while the nails act as protective plates for the fingertips.
Hence, it can be said that the average pH of the hair and skin lies between 4.5 and 6. Hence, the given statement is true.
https://brainly.com/question/12919965