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:How many orbitals are in the d-sub shell?Which of the following ingredients is required for…The maximum number of electrons in the L shell of an…Minerals such as contained in oyster shell help animals to?Which of the following is a major mineral resource…