The Peloponnesian Wars fought between Athens<span> and </span>Sparta<span> and their respective allies came in two stages, the first from c. 460 to 446 BCE and the second and more significant </span>war<span> from 431 to 404 BCE. With battles occurring at home and abroad, the long and complex conflict was damaging to both sides but Sparta, with financial help from </span>Persia<span>, finally won the conflict by destroying the Athenian fleet at Aegospotami in 405 BCE.</span>
The answer is b. urban areas in the northeast.
Japan and Korea they were the closest the other answers can be eliminated
The large land was isolated from much of the rest of the world by dry deserts to the north and west, the Pacific Ocean to the east, and impassable mountains to the south. This enabled the Chinese to develop independently from other world civilizations.
A primary source is a document or any artifact that provide us with evidence after an event occurs. Somebody who created a document, or speaks about the event, is a witness who saw everything that took place.
Now what you've been waiting for, the answers.
I don't think President Bush witnessed the event exactly where it happened but he was aware of it, trying to do anything he can, I'd say this could be a primary source, but I am not too sure.
An interview with someone who was in one of the twin towers on the day of the events would definitely be a primary source.
The Congressional Record of the House of Representatives showing the vote for the use of the army after the events that occurred on 09/11/01 would also be considered a primary source.
Hope this helps! Good luck!