They had more resources and national wealth
The Greco-Persian Wars were two conflicts that occurred between 490 and 479 BCE and pitted the Persian Empire against the Greek city-states. The conflict began after Athens and Eretria gave assistance to the Ionians in their rebellion against Persia and its ruler, Darius. (got the answer from google hehe)
The two groups that fought each other in World War I became known as the Triple Alliance (the main forces were Germany, Austria-Hungary, the Ottoman Empire and Italy) and the Triple Entente (the main forces were Russia, Great Britain and France)
Answer:
The opponent process theory suggests that the way humans perceive colors is controlled by three opposing systems. We need four unique colors to characterize perception of color: blue, yellow, red, and green. According to this theory, there are three opposing channels in our vision.
Explanation:
