Cities first appeared in the southern region of this land with the earliest dating back to about 3500 B. C.E. These were similar to small, independent countries. Each had their own
ruler, as well as their own farmland to provide food. Suppose that you were visiting one of
these early cities. You would see a walled settlement surrounded by farmland used to
supply food for the city, as well as strong city walls constructed with sunbaked bricks.
Moats, or ditches filled with water, would surround these walls and help keep out
enemies. During an attack, people living outside the city walls would flee inside for
protection.
An important idea in the paragraph above is...
STOP
ondor how it came to be built Why didn't people in

Can someone read this article and tell me the 1) key ideas and 2) one key quote (copy and paste the link the article is not to long at all)from

Who was thomas jefferson and what was his constitution toward the development of the us government

Asociologist wants to study a culture that occurs in some women’s prisons: “state families,” in which individual prisoners take on certain roles within a group of like-minded prisoners. there is previous evidence that younger prisoners will use older inmates who play the roles of grandparents as a resource before they will turn to staff for and advice. the lieutenant in charge of a dorm of long-term prisoners offers to gather volunteers to speak to the researcher and also offers to vouch for the integrity of the researcher. the use of this staff is: a valid use of a statistical technique referred to “snowball sampling” wherein the inclusion of the first subject leads to the recruitment of another one subject.a useful tactic in obtaining a sample of prisoners who both meet the criteria and who will be honest with the researcher.wrong and is prohibited; subject selection needs to be free from intervention by prison authorities or prisoners.acceptable only when the researcher’s irb grants a special waiver.