The process by which human beings living with one another must learn to come to terms with the ways of thinking and feeling considered appropriate in their respective cultures is

The process by which people living with one another must learn the ways of thinking in their respective cultures is cultural adaptation. It takes time before a person can adapt to a new culture and be comfortable with it. Emotions that go with the cultural adaptation includes culture shock,  recovery, and adjustments.   

the chair is the committee member from the majority party who has the most seniority. in the south carolina senate, the chair is the committee member from the majority party who has the most committee seniority.