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:The reason for the decrease in the atomic size of…Which of the following arrangements indicates the…The atoms of four elements are represented as 20Q,…Elements in the periodic table are arranged in the…Which of the following mineral salts is a trace element?