Limestone is a sedimentary rock that forms from the accumulation of shells, coral, and other organic materials. It is primarily composed of calcium carbonate.
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Karst Topography: Karst topography refers to landscapes formed by the dissolution of soluble rocks like limestone. It creates unique features such as sinkholes and underground caves.
Fossil fuels like coal and oil are derived from ancient plants and animals that were buried and transformed into rock-like substances, including some types of limestone.