Answer:
The present day countries in the area where the Mayan culture flourished are much of Mesoamerica, part of present -day southern Mexico, Belize, most of Guatemala, and in Honduras and El Salvador. Hope this helps^_^
Explanation:
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Civilizations developed around rivers because their waters provided places to hunt and fish.
Also, as the rivers flooded, the lands around them became fertile. This allowed them to support farming.
In addition, because they provided a steady supply of drinking water.
Moreover, goods and people could be transported easily
Finally, River valleys not only have water, they also often have a broad, flat floodplain that is readily adapted to agriculture.
Answer:
Radiation exposure, increased cancer rates, etc
