Answer:
Dendrochronologists study tree rings to learn about past climates. Trees in temperate areas form one growth ring per year. Scientists can look at the rings and identify climate conditions during each year of the tree’s life. Scientists found long droughts in both the twelfth and thirteenth centuries. This is the same period when the Anasazi were leaving Chaco Canyon. Under normal conditions it was hard to support their villages in the harsh environment of northern New Mexico. When years of drought occurred, the densely populated Anasazi pueblos could no longer raise enough food. Other forces could have pushed the Anasazi away from Chaco as well.
Explanation:
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Helen and her colleagues require a <u>Appraisal Meeting</u> to evaluate the goals and objectives.
A social event of the industrial rev was their was less need for manual labor making them able to do other jobs causing an economic effect to if they are a less developed country they can start doing other jobs, make more money and are able to pay taxes therefore ending the cycle of poverty
(p.s. is this for ap human geography)
Mexico's economy is the 15th largest in the world in nominal terms. Hope this helps :)
