Egypt, what kind of leadership does such a civilization need? What does a government need to do to protect the way of life for its people? Can you think of any instances when the government did not attend to the needs of the people?

Geography has a profound effect on where civilizations settle. The earliest civilizations resided within river valleys, and used the area around them to create opportunities to benefit their growth. Mountains, rivers, and plateaus provided natural defenses, at the cost of movement and trade.

Explanation:

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

frederick the great and the war of austrian succession. frederick william of brandenburg-prussia trained his son, frederick, to be a hardy soldier. he also declared himself king of bohemia, and maria theresa sent troops to retake bohemia. in august he led 80,000 of these men across the frontier into bohemia, his