What is one cause of the cool climate in some areas of east africa

answer; ///the (iroquois) cultures was made up of several groups, who spoke a common language

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aliens are not real, the myth was created about 700 years ago because people found markings in the field of their crops. also, no there were no aliens on the moon.

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it depends on which society you are referring to. many civilization performed rituals so the gods would with their growing season but the most well known is that of the aztecs. they would make sacrifices, usually animals, but sometimes humans as well.