Limestone mined in Haryana is used in the production of cement.
Cement is a binding agent that is used to hold together other materials, such as sand and gravel, to form concrete. It is made by heating limestone and clay to high temperatures, which causes them to react and form a new substance called clinker. The clinker is then ground into a powder and mixed with water to form cement.
Cement is a very important material in the construction industry. It is used to build roads, bridges, buildings, and other structures. It is also used in the manufacture of concrete products, such as pipes, tiles, and countertops.
The production of cement is a major source of pollution. The burning of limestone releases carbon dioxide into the atmosphere, which contributes to climate change. The mining of limestone also disrupts ecosystems and can lead to water pollution.
Despite its environmental impact, cement is a vital material that is essential for modern construction. As the world’s population continues to grow, the demand for cement is expected to increase. This will put even more pressure on the environment, and it is important to find ways to produce cement more sustainably.
The other options are incorrect because:
- Fertilizer is made from a variety of materials, including phosphate rock, potash, and nitrogen.
- Steel is made from iron ore.
- Paper is made from wood pulp.