Question

what a detailed account on the origin of agriculture and civilisation?

Answer 1

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Answer 2

Origins of agriculture, the active production of useful plants or animals in ecosystems that have been created by people. ... As a result, an area may produce more of the plants or animals that people desire for food, technology, medicine, and other uses.
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In about 3200 BC the two earliest civilizations develop in the region where southwest Asia joins northeast Africa. Great rivers are a crucial part of the story. The Sumerians settle in what is now southern Iraq, between the mouths of the Euphrates and the Tigris.