When did modern agriculture came into practice?

between 7,000 and 10,000 years ago, during the Neolithic era, or the New Stone Age.

Explanation:

the correct answer on edgen is:

(c.) prevent the spread of communism.

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the economic difference between the three colonial regions. shipbuilding, whaling, fishing, and trapping where also main factors to the economy. the southern regional colonies economy was based on sugarcane, rice, cotton, tobacco, and indigo.