The correct answer is (b), iron ore.
Bailadila is a hill range in the Bastar district of Chhattisgarh, India. It is famous for its iron ore reserves, which are among the largest in the world. The iron ore from Bailadila is of high quality and is used in the manufacture of steel.
Limestone is a sedimentary rock composed of calcium carbonate. It is used in the manufacture of cement, lime, and other building materials.
Coal is a fossil fuel formed from the remains of ancient plants and animals. It is used in the generation of electricity and the production of
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