Why there were more deaths in ww1 than in the napoleonic wars?

What from the columbian exchange had perhaps the biggest impact on the world?

What was one important characteristic of the russian military during world war i? a. it had more advanced military technology than its western european allies. b. it was an all-volunteer military that enjoyed high morale throughout the war. c. it defended russian territory but refused to attack german positions d. it was unable to provide its forces with adequate weapons and supplies.

Islam descended from what early religion