persian empire the biggest empire and it had a centralized government Alexander the Great invaded Persia with a strong armed army. He portrayed himself in Persia and Egypt as a legitimate successor. Athenian democracy direct Read more…
volcano a mountain through which molten lava and gases erupt Ring of Fire Area around the Pacific Ocean known for frequent earthquakes and volcanoes eruption When melted rock, ash, and gases pour out of a Read more…
organisms an individual form of life, such as a plant or animal directly in a direct line or way, straight affect to cause a change in something or someone traces a very small amount vast Read more…