Food deserts are defined by the US Department of Agriculture as rural and urban areas lacking easy access to wholesome, inexpensive food.
The act of raising livestock and crops is known as farming.
The invention of agriculture, which allowed humans to raise domesticated animals to produce surplus food that enabled humans to live in cities, was critical to the growth of sedentary human civilization.
Agriculture has a history of thousands of years. Humans began harvesting wild crops at least 105,000 years ago and planting them about 11,500 years ago.
Over 10,000 years ago, humans began domesticating sheep, goats, pigs and cows. In the 20th century, two billion people still depended on subsistence farming, but large-scale monoculture-based industrial farming dominated agricultural production.
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