The idea that Descartes did contribute to the Scientific Revolution was logic and mathematics that could figure out the uncertainties of existence. Rene Descartes was considered a modern philosopher and published Discourse of Method which was standard of scientific method.
Because, salt was needed to flavor food, preserve meat, used for medical purposes, and to keep the body healthy. But in West Africa, salt was rare. So, West Africans traded their gold for salt. Salt was so valuable, it was worth its weight in gold. 1 pound of salt = 1 pound of gold. How amazing.
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I believe the answer would be D. War information to be released publicly must be deemed
