Iceberg

From Conservapedia - Reading time: 1 min

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An iceberg is a frozen piece of freshwater ice that floats in the ocean. Only one tenth of an iceberg appears above the surface of the ocean, while the rest of it remains invisible below. The average ice berg weighs 20,000,000 tons. Icebergs can be quite hazardous for nearby ships. An iceberg was responsible for the sinking of the Titanic.