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'''Agriculture''' is the intentional growing of plants for human use.

'''Agriculture''' is the intentional growing of plants for human use.

Agricultural societies appeared in several widely separated parts of the Old and New Worlds between about 10,000  to 5000 years ago.  Most human populations had become dependent on agriculture by some 2,000 years ago <ref>http://courses.washington.edu/anth457/agorigin.htm</ref>.

Agricultural societies appeared in several widely separated parts of the Old and New Worlds over 5000 years ago.  Most human populations had become dependent on agriculture by some 2,000 years ago <ref>http://courses.washington.edu/anth457/agorigin.htm</ref>.

Various amounts of care are involved, from little more than scattering [[seed]]s and later checking for a [[harvest]], to large scale industrial agriculture, where thousands of [[acre]]s are devoted to growing one [[crop]], using carefully bred and selected seeds, highly processed [[man-made]] [[fertilizer]]s, and a variety of [[pesticide]]s.

Various amounts of care are involved, from little more than scattering [[seed]]s and later checking for a [[harvest]], to large scale industrial agriculture, where thousands of [[acre]]s are devoted to growing one [[crop]], using carefully bred and selected seeds, highly processed [[man-made]] [[fertilizer]]s, and a variety of [[pesticide]]s.