Why was a major land battle like Plataea necessary for the Greeks, even after their important naval victory at Salamis?

The Persian navy had regrouped and was planning another attack.

The Spartans had not yet participated in any of the fighting.

A large portion of the Persian army was still occupying Greek territory.

The Greeks needed to capture the Persian king, Xerxes, who was leading the army.

How did the outcome of the Battle of Plataea affect the Persian Empire's future ambitions in Greece?

It caused the total collapse of the Persian Empire.

It ended any further attempts by Persia to invade mainland Greece.

It prompted Persia to form a strong military alliance with the city-state of Athens.

It led to a civil war between Xerxes and his generals over the failed invasion.

The Greeks had lost every major battle and were close to surrender.

The Persian army had been completely defeated at sea and had no forces left in Greece.

The Persian army remained a threat on land despite a major naval defeat at Salamis.

Athens and Sparta were fighting each other and could not unite against Persia.

A naval battle in the Aegean Sea

A prolonged siege of a Persian fort

A decisive battle fought between land armies

A surprise amphibious assault on the Persian coast