The major mineral present in the shell of Molluscs is? by Sunday | Mar 15 | Biology WAEC | 0 comments A. Copper B. Sodium C. Iron D. Calcium Correct Answer: Option D – Calcium Users Also Read These:The maximum number of electrons that can occupy the…What is the valence shell electron configuration of…Which of the following elements has a ground state…The number of electrons in the valence shell of an…The maximum number of electrons in the L shell of an…