Edge ! Which best describes Atlanta’s Hartsfield-Jackson airport?

It serves over 2,500 jets a year.
It was established in 1968.
It is the busiest passenger airport in the world.
It only handles passengers flying within the United States.

What does the term mandate” mean in terms of civil rights and liberties?

Experiment to investigate effect of medication on levels of stress in males and females. dependant variable?

Chen's research team randomly assigned some newborns and their mothers either to a breastfeeding promotion group (where breastfeeding was encouraged, but not required) or to a normal pediatric care group (where breastfeeding was neither encouraged nor discouraged). which research method did they use?