According to learning theorists, involves the presentation of a stimulus that increases or maintains a response.

What would be the most relevant question to ask to find out why tutankhamen died? what was tutankhamen’s age when he died? was a doctor with tutankhamen at his death? why was tutankhamen mummified after his death? did tutankhamen’s body have evidence of disease?

How long is a representative’s term of office

In 1866, a mob in which tennessee city attacked local african americans and burned down homes and schools?