The major mineral present in the shell of Molluscs is? By: Sunday|Published on: Mar 15|Categories: Biology WAEC| 0 comments A. Copper B. Sodium C. Iron D. Calcium Correct Answer: Option D – Calcium Users Also Read These:How many orbitals are in the d-sub shell?The extra oyster shell meal supplied to breeding hens?Which of the following is a major mineral resource…Which of the following elements has a ground state…The maximum number of electrons in the L shell of an…SEE ALSO Which of the following groups of compounds are products of the light stage of photosynthesis?