Pearl is a hard object produced within the soft tissues of a mollusk. Which one of the following is the main constituent of pearl? a. Calcium Carbonate b. Calcium Oxide c. Calcium Nitrate d. Calcium Sulphate

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User: Pearl is a hard object produced within the soft tissues of a mollusk. Which one of the following is the main constituent of pearl? a. Calcium Carbonate b. Calcium Oxide c. Calcium Nitrate d. Calcium Sulphate

Weegy: Pearl is a hard object produced within the soft tissues of a mollusk. Calcium carbonate is the main constituent of pearl.
Expert answered|paine|Points 8105|

User: A biological community in its environment such as a pond, an ocean, a forest, even an aquarium is known as - a. biome b. community c. abiotic environment d. ecosystem

Weegy: A biological community in its environment such as a pond, an ocean, a forest, even an aquarium is known as biome.
Expert answered|paine|Points 8105|

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