IELTSADATA READING PASSAGE 89-THE HISTORY OF SALT
# IELTSADATA READING PASSAGE 89-THE HISTORY OF SALT. 1. Salt is so simple and plentiful that we almost take it for granted. In chemical terms, salt is the combination of a sodium ion with a chloride ion, making it one of the most basic molecules on earth. It is also one of the most plentiful: […]
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