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Which consequence arose when 18th-century ships excessively stored livestock near compass housings during long voyages?

A)Increased risk of geomagnetic reversals
B)Significant compass deviation from cargo's magnetism
C)Elevated hull stress from concentrated weight
D)Spread of zoonotic diseases affecting crew

💡 Explanation

When livestock was stored near compasses, induced magnetism occurred because the iron within tools and the animals altered the local magnetic field, deflecting the needle from true north. Therefore, compass deviation resulted, rather than geomagnetic reversal, hull stress, or disease spread, which result from other physical and biological mechanisms.

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