The mineral needed for the formation of haemoglobin is? by Sunday | May 17 | Biology WAEC | 0 comments A. magnesium B. iron C. phosphorus D. calcium Correct Answer: Option B B. iron Users Also Read These:The marketing mix element which ensures that goods…Close to the time of harvesting of cotton, sunshine…What quantity of electrons in moles is needed to…Which of the following statements about nitrogen is…Which of the following mineral elements is essential…