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:
The persron who served as a leader and was elected president in 1953 was Dwight D. Eisenhower
More education, more training, and more skills can help one earn higher wages in various ways; First, education builds your knowledge and capacity and equips you with knowledge and skills in a particular field or profession. This enables one to earn higher wages; therefore, an improvement in one's education qualifications thus results in higher wages. Secondly, more training increases an individual's skillset where other than one's line of profession individuals acquire training to improve their skills and wages. Lastly, more skills mean that one has increased their number of tasks they can perform which translates to an increase in the number of opportunities and wages one receives.
Answer:
"The Roman army made the roads and sea routes safe for traders. In turn, trade helped the economy grow. People in each area of the empire could sell what they grew or made to people in other areas who could use these goods. They could also buy things that they couldn't produce for themselves."
This answer is not my own work. It was written by the teachers of Delaware City Schools.
Explanation: