Which risk was amplified by repeated irrigation cycles with untreated river water in Sumerian agriculture?

💡 Explanation

When untreated river water is repeatedly used for irrigation, capillary action wicks salts to the surface subsequently evaporating, concentrating minerals because the water contains dissolved salts. Therefore soil salinization results, rather than infestations, algae, or groundwater issues, which involve unrelated biomes and hydraulics.

• Which benefit occurred when pre-Columbian Andean terraces implemented stone-faced retaining walls on steep slopes?
• Which astronomical calculation was fundamentally limited by the planispheric projection inherent to astrolabes?
• Which navigational challenge limited accurate charting on 18th-century ships navigating eastward due to accumulated error?
• Which outcome resulted from the collapse of terraced hillside agriculture in Ancient Great Zimbabwe?
• Which mechanism allowed early suspension bridges to span longer distances than arch bridges?
• Which optical phenomenon explains how Ibn al-Haytham demonstrated light travels in straight lines using a camera obscura?