What was one reason Persia attacked Greece? *

Persia wanted revenge.
Persia wanted farmland
Persia wanted Greek culture.
Persia wanted better schools.

Are people more motivated to change from positive or negative experiences, like slavery, womens rights, and any other historical movements/moments? i need more factual information than opinions.

What does the point on the graph represent? a. aggregate supply and demand equilibrium b. aggregate supply c. aggregate rising prices and supply d. aggregate rise in gdp

What are the most populous and least populous areas of russia? and why are some areas more heavily populated than others?