Asked by berlanda
Why did so many early civilizations arise near river valleys?
Rivers provided an easy route for trade.
The seclusion of a valley provided protection from enemies.
Water created fertile soil and other agricultural advantages.
Monsoons inflicted less damage away from coastal areas.
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Correct answer: Water created fertile soil and other agricultural advantages.
Rivers provided regular water for irrigation, deposited nutrient-rich silt in floodplains, and supported reliable crop production. That agricultural surplus let populations grow, specialize, and form complex societies. Rivers also helped trade and transport (true but secondary), while seclusion and monsoons are not the main reasons.
Rivers provided regular water for irrigation, deposited nutrient-rich silt in floodplains, and supported reliable crop production. That agricultural surplus let populations grow, specialize, and form complex societies. Rivers also helped trade and transport (true but secondary), while seclusion and monsoons are not the main reasons.
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