The egg shell is made up of ____________.
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Answer:
Eggshell is made almost entirely of calcium carbonate (CaCO3) crystals. It is a semipermeable membrane, which means that air and moisture can pass through its pores. The shell also has a thin outermost coating called the bloom or cuticle that helps keep out bacteria and dust.
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Explanation:
Eggshell is made almost entirely of calcium carbonate (CaCO3) crystals.
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