▶ Your Answer : Untill 13th century Anasazi civilazation be a bigger part in that period. But suddlenly began to disappeared. Reading passage says that because of three reasons of drought Anasazi civilization quiet to flourish. First of all, malnutrition make people in Anasazi leave their home. In that time, beacuse there was a drought, all kinds of food like grains couldn't grow appropriately. So grains had less nutritions such as vitamins and minerals. At the end it make Anasazi people to leave to other flourish place. But lecture said it makes no sense that malnutrition caused migration because at that times malnutrition was common issue everywhere. Even during harvest people couldn't eat well. Second, because Anasazi people disrupted the settlement during drought, Anasazi civilization disappeared. They blocked off the wall between their country and other country. Only accepted the individual settlement. But this isn't reasonable theory because it make us think that why they didn't returned after drought. Untill now we have a question about it. Lastly, the theory that drought make Anasazi people leave there hometown is not the appropriate reason. It means lack amount of water supply couldn't fulfill the flourished people in Anasazi area. However, there were many area more harsher conditions than Anasazi where they went. And also even the place where water supply was not well facilitated. At the end, there are three theories about why Anasazi civilization disappeared so suddenly. They claimed that malnutrition of food, blocking off the settlement and less water caused Anasazi people to go other area. But it's ridiculous it was common situation of malnutrition and other country was in same conditions.
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