Why our hairs are black?​

Hair color is determined by the amount of a pigment called melanin in hair. An abundance of one type of melanin, called eumelanin, gives people black or brown hair. ... If the receptor is not activated or is blocked, melanocytes make pheomelanin instead of eumelanin. Many other genes also help to regulate this process.

Explanation:

hope this helps

Explanation:

the hairs in our body are black because of the subtance present in our body ( but not in evry human being because of lack of melanin)