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Time taken for the pearl to be formed is...

Time taken for the pearl to be formed is

A

One year

B

Three years

C

Five years

D

Seven years

Text Solution

AI Generated Solution

The correct Answer is:
To determine the time taken for a pearl to form, we can follow these steps: 1. **Understand the Formation Process**: Pearls are formed in mollusks when a foreign particle, such as a grain of sand or a parasite, enters the mantle cavity of the mollusk. The mantle is a layer of tissue that secretes substances. 2. **Identify the Secretion**: The mollusk responds to the foreign particle by secreting layers of nacre (also known as mother-of-pearl), which is primarily composed of calcium carbonate. This secretion forms around the irritant. 3. **Duration of Formation**: The time it takes for a pearl to form can vary based on its size. Smaller pearls may take around 6 months to form, while larger pearls can take several years. 4. **Average Time for Pearl Formation**: Based on the information, the average time for a pearl to form is approximately 5 years. This is the most common duration cited for pearl formation. 5. **Select the Correct Option**: Given the options of 1 year, 3 years, 5 years, or 7 years, the average time of 5 years aligns with option C. Thus, the time taken for the pearl to be formed is **5 years**.
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