Which ancient civilization created an extensive water conservation system called 'qanat' that sustainably tapped into groundwater and is still used in parts of the Middle East today?

Before modern environmental movements, ancient civilizations developed remarkable sustainability practices that allowed them to thrive for centuries. Some of these ingenious methods have only recently been rediscovered by archaeologists and environmental scientists. Test your knowledge about how our ancestors managed resources and lived in greater harmony with their environments through sophisticated sustainability initiatives.

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Persian Empire
Aztec Empire
Ancient Egypt
Indus Valley Civilization