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How are pearls formed? | #aumsum #kids #science #education #children
Pearls are the result of a biological process within living sea creatures like an oyster as it protects itself from foreign substances. An oyster has two shells. Inside the shells, there is an organ called mantle. Mantle covers and protects all the internal organs of the oyster. Whenever any foreign substance like a grain of sand or a parasite ...
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