<span>Psychologists carefully controlled conditions and measure behavior by c</span><span>onducting research in a laboratory, research methods are all about controlling everything so you can be surer of the cause of any variation you observe.</span>
It is estimated that as many as 4.5 million Irish arrived in America between 1820 and 1930. Between 1820 and 1860, the Irish constituted over one third of all immigrants to the United States. In the 1840s, they comprised nearly half of all immigrants to this nation.
I am pretty sure that the answer that goes in the blank is <em><u>need</u></em>
Answer:
City/Town Country/Territory
Buenos Aires Argentina
Cairo Egypt
Canberra Australia
Caracas Venezuela
Explanation:
One way you can remember them easier is by a song most of the time putting something in song makes it easier to learn.