The "national feeling" discussed in the source was exacerbated by which of these historical developments?

The process of rocks breaking down and becoming other rocks

How does the establishment clause limit government?

The persian wars started when emperor darius i began an invasion of greece. what caused darius to decide to attack greece? a. greek pirates had raided persia's merchant ships and coastal towns. b. greek armies had attacked and taken over land that belonged to persia. c. greek city-states had supported rebellions in the persian empire. d. greek leaders had declared independence from the persian empire.