Table below shows casualties suffered by some of the allied nations that participated in world war i: which factor explains the high casualty rates of suffered by both sides in world war i? aerial attacks on civilian populations the use of poison gas and machine guns the use of unrestricted submarine warfare blimps used to direct artillery fire

the use of poison gas and machine guns

Explanation:

Aerial attacks weren't really a thing, unrestricted submarine warfare was a reason why the US joined the war but not a factor in high casualty rates, and blimps using direct artillery fire isnt as practical as machine guns and poison gas

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

mexico south america

explanation: