What is the single most important resource needed in order to develop a civilization?

i'm pretty sure it's a river, or source of water but not 100% sure

Water is the single most important resource needed in order to develop a civilization.

Explanation:

The world's major civilizations all had one common factor; they developed around water, mainly in the form of a long river. Water is the single most important resource needed in order to develop a civilization, as humanity, both in the past and in present time, need water in order to survive. In ancient times, civilizations were formed around water as they not only needed it to drink but also to cook, to water the crops, and where there was water there were likely fish. Later on, these civilizations started to use water as faster way to transport goods and to exchange goods with other civilizations, creating ports. Almost every long-lasting civilization in the world such as the Arabs, Chinese, Indians, and Venetians, were all formed around water, and used that water to expand and develop their communities.

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explanation:

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