Farmers in mesopotamia learned to irrigate their land, which allowed them to grow more crops than they needed. the surplus crops led to the development of trade and commerce. mesopotamians traded the extra crops for goods and services. the city-state of ur in sumer became a major trade center. the temples of ur were the main employer and location for commercial activity.

according to the passage above, what contributed most to the development of ur as a major trading center?
a.
the city of ur had many temples for trade and commerce.
b.
mesopotamian farmers were able to grow surplus food.
c.
the city of ur employed many people in temples.
d.
mesopotamia had a surplus of commerce and trade.

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.

Ato z on the bun timeline show where the events listed a through g board blow fit on the timeline

Suppose you are a freshmen in college and you have not declared a major. one reason you enrolled at your respective college was the school's vibrant social life. at the same time, you want to balance your academic life because you know that your grades will matter for graduate school or job applications.you decide to forgo partying for two hours to study for an upcoming economics exam. in your first semester's principles of economics class, you learn that the enjoyment you would have received from partying is an example of a(n)