The correct answer is: b) Cement production.
Meghalaya’s limestone deposits are particularly suitable for cement production because they are high in calcium carbonate. Calcium carbonate is the main ingredient in cement, and it is essential for the production of strong and durable concrete.
The other options are incorrect because they do not require limestone as a primary ingredient. Construction, steel manufacturing, and fertilizer production can all be done using other materials, such as sand, gravel, iron ore, and ammonia, respectively.
In addition to being high in calcium carbonate, Meghalaya’s limestone deposits are also relatively pure. This means that they do not require as much processing as limestone from other sources, which can save money and reduce environmental impact.
As a result of these factors, Meghalaya’s limestone deposits are an important resource for the cement industry. The state is home to several cement plants, and the industry is a major contributor to the local economy.