what do Marina animals use to make their shells
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The shell of marine animals is made up of calcium carbonate. Oceans and seas are rich in calcium and carbonates. These are used by marine animals for making their shell which protects them from external surroundings.
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calcium carbonate
calcium carbonateThe shell of marine animals is made up of calcium carbonate. Oceans and seas are rich in calcium and carbonates. These are used by marine animals for making their shell which protects them from external surroundings.
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