The presence of limestone deposits has led to the development of a significant _____ industry in Andhra Pradesh.

The correct answer is: a) Cement.

Limestone is a sedimentary rock composed mostly of calcium carbonate (CaCO3). It is the main raw material used in the production of cement, which is a key ingredient in concrete. Concrete is a versatile building material that is used in a wide range of applications, including construction, infrastructure, and manufacturing.

Andhra Pradesh is a state in southern India that has significant

limestone deposits. These deposits have led to the development of a significant cement industry in the state. The cement industry is a major contributor to the state’s economy and provides employment to thousands of people.

The other options are incorrect

because they are not directly related to limestone. Steel is made from iron ore, fertilizer is made from natural resources such as phosphate rock and potash, and glass is made from sand.