If this is for the American Pageant, the correct answer is disease
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The primary cause of the fall of the Zhou Dynasty was internal conflict and fragmentation among regional states, weakening the central authority and leading to its eventual collapse.
no it wasn't the primary cause for the Enlightment
Diseases caused a high mortality rate among Native populations because they had no previous exposure to these new illnesses brought by European settlers, making them more vulnerable to the diseases due to lack of immunity.
The increasing revolts against white settlers by Native Americans were primarily driven by the loss of land and resources due to westward expansion. As settlers encroached on their territories, Native American tribes faced displacement, destruction of their traditional ways of life, and threats to their sovereignty. Additionally, broken treaties and the U.S. government's failure to uphold agreements fueled resentment and resistance among Native American communities. This culmination of factors led to heightened tensions and uprisings against settlers.
The primary cause of death among tobacco-growing settlers was nicotine poisoning. These settlers ingested too much nicotine, and they got sick and died.
Ticks
homestuck
The primary cause of the fall of the Zhou Dynasty was internal conflict and fragmentation among regional states, weakening the central authority and leading to its eventual collapse.
Geography,,,,,,,,,,,,
The principal cause of death among American Indians after the arrival of European explorers and settlers was the introduction of new diseases, such as smallpox, influenza, and measles, to which Indigenous populations had little to no immunity. These epidemics decimated communities, often killing large percentages of the population. Additionally, violence from conflicts with settlers and the disruption of their traditional ways of life contributed to the decline of Native American populations.
The primary cause of changes in motion is typically referred to as a force. Forces can include pushes, pulls, gravity, friction, and tension, among others, which can influence the speed, direction, or state of motion of an object.
*volcanoes Earthquakes and vOlcanoes can cause much damage among an area if it's shaken to pieces.
no it wasn't the primary cause for the Enlightment
The highest incidence of PTSD among active-duty service members after it was recognized as an actual ailment is among clerical personnel located stateside. So reading about it appears to be the primary cause.
The primary cause of the Crusades was for the Christians to win back the "Holy Land."
The Native Americans had land. The European Settlers wanted it. That is not just the "most likely" cause, that is the cause.