Which navigational risk decreased significantly, following adoption of Harrison's chronometers?

💡 Explanation

More accurate timekeeping enabled true longitude calculation because the difference between local time (position of sun) and Greenwich time (chronometer) determines east/west position via timekeeping. Therefore, longitude errors decreased, rather than sextant or compass errors, which concern latitude or direction.

• Which risk increased for pre-Columbian societies during periods of volcanic ashfall interrupting chinampa agriculture?
• Which outcome results when attempting to focus sunlight through a flawed 11th-century burning lens?
• Which consequence results when freezing temperatures saturate ancient stone aqueduct linings?
• Which property increases when ancient Chinese iron is repeatedly cast, resulting in early cannons?
• Which benefit did the ancient Chinampa raised-field cultivation technique provide relative to traditional floodplain farming?
• Which risk increased during 14th century Chinese mining when gunpowder replaced human labor?