What change took place in the governments of most Greek city-states from the 500s b. c.e. to 336 b. c.e.?

In 100,000 years, the rotation of earth will be slower by how many seconds?

When the communist, under mao, took control of china in 1949 they announced total support support for which country and its ideology?

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)