The correct answer is limestone. Limestone is a sedimentary rock composed mainly of calcium carbonate (CaCO3). It is the most common type of rock found in Haryana. Limestone is used in a variety of industries, including construction, cement production, and agriculture.
Coal is a fossil fuel formed from the remains of ancient plants. It is a non-renewable resource and is used to generate electricity, produce steel, and make chemicals. Coal is not found in Haryana.
Iron ore is a mineral that contains iron. It is used to make steel. Iron ore is not found in Haryana.
Copper is a metal that is used in a variety of products, including electrical wiring, plumbing, and coins. Copper is not found in Haryana.