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Explanation:
Teotihuacan
The Teotihuacan Period: 200-900 CE – During this era the great city of Teotihuacan grew from a small village to a metropolis of enormous size and influence. Early on, Teotihuacan was a rival of another city called Cuicuilco but, when that community was destroyed by a volcano c.
The first year that had an Earth day was 1970. Earth day is to get people to cut down on pollution and recycle. It is to overall treat the earth better.
An advantage of local governments is that they are able to adapt to local needs and react more quickly to local problems than a central government could, & it is more likely to be more efficient to run services locally then manage them from the center.
