The houses were built close together for a community spirit.
The answer is D ..I had this question before
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Which African empire extended from the Atlantic Ocean to lake Chad and west Africa?:</h3>
ghana Empire Mali Empire Songhai empire great Zimbabwe
The first humans adapted and modified their environment, by manipulating soils and rich silt form the irrigation of the river valley. This allowed for greater use of agriculture which helped the population sizes increase and eventually evolved into a surplus. The humans began to domesticate animals and use them for work. All these adaptation and modifications let civilization eventually grow to the society it is today.
The three major schools of thought emerged from the Warring states period were-
1. Legalism- It was associated with Han Feizi. This thought spelled out and strictly enforced rules or laws through a system of rewards and punishments.
2- Confucianism- It was associated with Confucius. This was different from Legalism. It was not about the laws and punishments, but the moral example of superiors so as to restore social harmony after the Zhou and Qin dynasties.
3- Daoism- It was associated with Laozi. Daoists urged withdrawal into the world of nature and encouraged behavior that was spontaneous, individualistic, and natural.