Monk's mound in cahokia is an enormous earthwork very near to the mississippi river. what do archaeologists believe it was used for?

:calculate the sum of the interior angles of a 13-sided polygon.

[fw.02]diana is studying four surface features of florida. she classifies the surface features and places them in different columns of a chart as shown below. surface features column 1 column 2 hot springs sinkholes caverns geysers which of these titles best represents column 1 of diana's chart? formed by freezing groundwater o formed by heating groundwater o formed by evaporation of groundwater o formed by chemical action of groundwater

Why is immigration so important today?