Sociology.
People getting along with one and another is called 'Cooperating'.
The way people get along with one another and make and keep friends is called relationships.
b. can improve a person person's personal life.
Contact hypothesis.
can improve a persons personal life.
All the time. It is more rare to find people who don't get along.
it made it easier to go from one place to another .
That people litter and don't get along with one another.
Observation And examination
because people needed to get from one place to another
That is called immigration. It involves people moving from one country to another with the intention of settling there for various reasons such as work, study, or to be with family.
The study of how living and extinct organisms are related to one another is simple. This study is called evolution.