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Copper sheathing<span> is a practice of protecting a under-water hull of a ship or boat from the corrosive effects of salt water and bio fouling through the use of </span>copper<span> plates affixed to the outside of the hull.
It was pioneered and developed by the Royal Navy during the 18th century.
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Answer:
The Columbian Exchange, though a highly lucrative trade route, was a direct source of hardship for many peoples. Native Americans, for example, had their populations decimated by diseases to which they had no immunity. Whole communities were wiped off the map, those that remained were too small in number to halt the colonization efforts of the European powers.
Explanation:
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