Limestone is a sedimentary rock composed mainly of calcium carbonate (CaCO3). It is the most common sedimentary rock on Earth, and is found in all continents. Limestone is formed when the remains of marine organisms, such as coral, algae, and shellfish, accumulate on the seafloor and are buried over time. As the sediment is buried, it is subjected to heat and pressure, which causes the calcium carbonate to crystallize into limestone.
Limestone is used in a variety of industries, including construction, agriculture, and manufacturing. It is the main ingredient in cement, which is used to make concrete. Limestone is also used to make lime, which is used in agriculture to neutralize acidic soils. In addition, limestone is used to make glass, paper, and other products.
The correct answer to the question “Limestone is used in the production of: Cement / Glass / Fertilizers / Paper” is Cement. Limestone is the main ingredient in cement, which is used to make concrete. Concrete is a mixture of cement, water, and aggregates (sand and gravel). It is one of the most widely used building materials in the world. Concrete is used to build roads, bridges, buildings, and other structures.
The other options are incorrect. Glass is made from silica sand, soda ash, and limestone. Fertilizers are made from a variety of materials, including nitrogen, phosphorus, and potassium. Paper is made from wood pulp.