Who conducted the first experiments in psychology?

The president vetoes a bill proposed to become law by congress. in this situation, what happens to the bill?

Nami conducts an investigation on plants. she places a grow light on a timer to give the plants different amounts of light to see if this would affect their growth. in this investigation, the amount of light is the .

What choices did the family of emmett till and their supporters make in exposing the brutality of his murder? how did these choices shape public reaction to the murder?