text: this group our fastest-growing minority has enriched our nation is a essential or nonessential clause? this group our fastest-growing minority has enriched our nation.  would taht be a essential or non-essential clause? you can't really say it is either because there have to be two clauses in a sentence for one to be essential and the other to be nonessential. however, i suppose, since it is a lone clause that does make a complete sentence, you could argue that it is essential.