Question

What are eggshels made of ?​

Answer 1

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.

Explanation:

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Answer 2

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What are egg shells made up of??

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An eggshell is the outer covering of a hard-shelled egg and of some forms of eggs with soft outer coats

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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➨Chicken eggs were found to have a compressive strength of 100 lbs, whereas ostrich eggs gave values of more than 1000 lbs.

➨The shell makes up 9-12 percent of an egg's total weight

➨ A layer of crushed eggshells, placed in the planting hole for these vegetables, is a simple means of combating the disease.

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