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 is not regarded as a…The bones of the legs of a six years old boy are…Four elements P; Q; R and S have atomic numbers of…ETM 312 Elements Of Land Law