Answer:
They would have to work harder to have drinkable water and it would take a toll on their trade
Explanation:
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I do not know the answer but I think it might be D. or A.
During the Crusades, Peter the Hermit is credited with recruiting 30,000 peasants and poor townspeople to volunteer as crusaders. Peter the Hermit was a priest of Amiens and is widely credited by historians of today as being one of the key leaders of the first Crusade.
The name was Domino Theroy
