Things like Famine, religions tensions, racial discrimination, economic disparities
Answer:
Eye irritation.
Explanation:
There were several types of gases used during WWI (that's what I'm assuming this question is about) but all of them caused severe eye irritation, which would lead soldiers to sometimes take off there gas masks completely and expose the to the gas completely. That's why 85% of deaths in the war were though to be gas related. But instant death could be the other answer just because one of the gasses was particularly lethal and caused many deaths in the war.
Answer:
To be fair, yes.
Explanation:
Louis XVI was executed, officially, because of treason; he had been accused of betraying the French nation to the Austrians. Now, in fairness, Louis XVI had pretty clearly tried to flee Paris in order to organize a counter-revolution.
They need a strong leader.