1. which was a first step in the development of civilizations in both the egyptian and mesopotamian societies? a. switch to monotheism b. development of irrigation c. overthrow of a government d. pastoral behavior 2. which river is associated with the settlement of ancient egypt? a. ganges b. tigris c. nile d. yellow 3. who was the most powerful person in egyptian society and government? a. the priest b. the scribe c. the vizier d. the pharaoh e. quest

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: