<span>The Toltec culture is an archaeological Mesoamerican culture that dominated a state centered in Tula, Hidalgo in the early post-classic period of Mesoamerican chronology (ca 800-1000 CE). so my answer is this ok
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Answer:
New Technology Made battle deadlier
Explanation:
This would be the most likely answer but most would say unsanitary conditions killed the most people in ww I but especially biological warfare also took a tole