Population Density- measurement of population using volume or unit area.
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Answer:
Evidence of the latter would since have been covered by a sea-level rise of more than a hundred meters following the end of the last glacial period. Archaeologists contend that Paleo-Indians migrated out of Beringia ( western Alaska ), between c. 40,000 and c. 16,500 years ago. This time range remains a source of substantial debate.
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No it was roughly about 1 third of the American population
Conflict start because of where the settlers chose to place their settlement.
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It includes different sciences, such as biology, chemistry, and earth sciences. With the help of toxicology, environmental scientists can study the toxic effects of chemicals on humans.
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