First, you still use a lone apostrophe to make what they call “uninflected nouns” possessive. Those are the rare birds for which the singular and plural are the same and end in S—so words like “politics” and “economics.” Second, you still use a lone apostrophe when making place ...
Does its have an apostrophe when it is possessive? What is the difference between assonance and consonance? What is the opposite of personification? What are possessive nouns? What is an allusion as a literary device? Is an apostrophe punctuation?