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← HistoryWhich difficulty increased when Captain Cook circumnavigated New Zealand's islands?
A)Calculating longitude accurately without chronometers✓
B)Estimating ship speed through turbulent currents
C)Mapping coastlines prone to magnetic anomalies
D)Compensating sextant bearing angles at twilight
💡 Explanation
Determining longitude required accurate timekeeping unavailable until Harrison's chronometers; therefore, Cook relied on dead reckoning and lunar distances, a complex angular measurement method over vast unknown areas rather than methods used later when innovations were ready.
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