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What problem was associated with using lodestones for navigation?

stalmoney

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What problem was associated with using lodestones for navigation?

What problem was associated with using lodestones for navigation?

a. Their accuracy diminished as Chinese navigators got closer to the equator.
b. The full moon phase had an effect on the accuracy of the stone.
c. Iron cargoes seriously affected the accuracy of the stone.
d. They eventually lost their magnetism.
e. They could not be used during winter months.

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ravindergill185

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