Read the statements• Climate change eliminated old food supplies.• The population grew and there was a need for more food.• Societies were growing more complex.• New tools made food production, collection, and storage easier.Which best describes the statements related to the origins of humans?

These statements describe pressures and changes that encouraged people to begin farming and settle in one place. Climate change reduced familiar food supplies, while population growth increased the need for food; new tools helped people produce and store it. Together, these factors contributed to the Neolithic Revolution, the shift from hunting and gathering to agriculture. So the best choice is “They are causes of the Neolithic Revolution.”

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