An example of a trace elements is? by Sunday | Mar 15 | Biology WAEC | 0 comments A. potassium B. calcium C. magnesium D. copper Correct Answer: Option D – copper Users Also Read These:Which of the following elements would produce…The atoms of four elements are represented as 20Q,…Elements in the periodic table are arranged in the…The two elements 11X and 19Y are in the same group…Which of the following are elements of a valid contract?