Limestone
Definition
Limestone is a sedimentary rock that forms from the accumulation of shells, coral, and other organic materials. It is primarily composed of calcium carbonate.
Analogy
Imagine limestone as a giant stack of seashells glued together. Just like how the shells come together to form a strong structure, limestone forms when these organic materials bind together over time.
Related terms
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.
Acid Rain: Acid rain occurs when pollutants in the air react with water vapor, forming acidic compounds that can dissolve limestone and other rocks over time.
Fossil Fuels: 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.
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