How did the paleolithic era and the neolithic era begin? one sentence

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Paleolithic or Old Stone Age: from the principal generation of stone antiques, about 2.5 million years back, to the finish of the last Ice Age, around 9,600 BCE. This is the longest Stone Age time frame. The Neolithic Revolution began around 10,000 B.C. in the Fertile Crescent, a boomerang-molded locale of the Middle East where people originally took up cultivating.

Explanation:

The Paleolithic Era is noteworthy on the grounds that individuals set up the way toward chasing gathering, which has bolstered people for most of their reality on earth. The neolithic period was caused in light of the fact that individuals required a genuine, last spot to live in. It influenced how individuals lived in light of the fact that they cultivated, made the fire, and subdued creatures. The Neolithic Revolution was a major change throughout the entire existence of people. Individuals figured out how to make fire, plants, and agreeable creatures.

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

stewards ice box was the purchase of alaska from russia and it was called that because people thought it was not a good idea to purchase alaska