Hair is classified as a biotic component. This means it is organic and comes from a living organism. Hair is made up of a protein called keratin, which is produced by hair follicles located in the skin of mammals, including humans.
To elaborate, biotic components are those that are derived from living systems, while abiotic components refer to non-living elements like minerals, water, and air. Since hair originates from the biological processes of living beings, it carries the hallmark of a biotic feature.
Additionally, while hair itself is non-living once it has emerged from the skin, its classification as biotic comes from its biological nature and origin. In summary, hair is biotic due to its connection to living organisms.