The shell of Nautilus is composed in sea when there is higher concentration of Options: A . &nbspcarbonate (CO₃⁻²) ion B . &nbspcalcium (Ca⁺²) ion C . &nbspoxide (O⁻²) ion D . &nbsphydrogen (H⁺) ion

The shell of Nautilus is composed in sea when there is higher concentration of

Question

The shell of Nautilus is composed in sea when there is higher concentration of

Options:

A . carbonate (CO₃⁻²) ion

B . calcium (Ca⁺²) ion

C . oxide (O⁻²) ion

D . hydrogen (H⁺) ion

Answer: Option C
Answer: (c).oxide (O⁻²) ion

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