Which sentence best describes the influence of alliances on the start of world war i? alliances delayed the beginning of world war i because nations were afraid to attack one another. alliances forced member nations to settle their differences through talks rather than through armed attacks. alliances prevented many european countries from joining the war because they had signed a pledge not to. alliances between nearly all european nations meant that when two went to war, all became involved.

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:

where is the subject? hahahaha

they consider la nina a warm place and el nino a cool place but all aoround its pretty neatrual