Why were British prison ships used?

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Explanation:

While many nations have deployed prison ships over time, the practice was most widespread in seventeenth and eighteenth century Britain, as the government sought to address the issues of overcrowded civilian jails on land and an influx of enemy detainees from the War of Jenkins' Ear, the Seven Years' War and the French ...

because this was the year that the state of israel was formed

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer