Farming is a cause of cities because farming causes

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, which leads to a population increase and
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, which leads to trade and cities.

Farming is indeed a cause of cities because it leads to two important developments: population increase and trade.

To understand why farming leads to population increase, we need to consider the concept of surplus food production. Before the advent of organized agriculture, early human societies relied on hunting and gathering to meet their food needs. However, hunting and gathering often provided just enough food to sustain small, nomadic groups.

With the emergence of farming, humans learned to cultivate crops and raise animals, which allowed them to produce more food than they needed for immediate consumption. This surplus food production created a reliable and predictable food supply, which led to population growth. With more food available, more people could be fed, leading to larger communities and settlements.

As the population grew, another significant development occurred: trade. With surplus food to spare, communities began exchanging their excess resources with one another. This trade allowed people to obtain goods and resources that were not locally available, fostering economic and cultural exchanges. Over time, these trade networks became more sophisticated, leading to the formation of cities as central hubs for trade and commerce.

In summary, farming directly led to population increase by providing a reliable food supply, which in turn spurred trade and the development of cities.