What describes the term parasitism?

Parasitism is a kind of symbiosis, a close and persistent long-term biological interaction between the parasite and its host.Unlike commensalism and mutualism, the parasitic relationship harms the host, either feeding on it or, as in the case of intestinal parasites, consuming some of its food

Example a tick and a dog

i believe you meant to say air rather than hair so the answer is below ")

the dead sea, the lowest place on earth at 430 metres (1,410 ft) below sea level, has a correspondingly high typical atmospheric pressure of 1065 hpa.