Iron ore is a non-renewable mineral resource. Once it is consumed it cannot be generated again.

• Chile is the world's largest producer of copper, followed by China and Peru.
• Chile produces 5,750,000 tonnes of copper annually.

Solution: Limestone is mainly used as a raw material in cement industries. It is used as a building material, and to purify iron in blast furnaces. It's also used in the manufacture of glass, and of cement.

Koderma district is rich in minerals. The Koderma district and the Lokai-Indarwa area covers the southern part of Great Mica-Belt of Jharkhand, Bihar, and India. Previously the Mica belt was known as Bihar mica belt which extends for a distance of 160 km having an average width of 25 km. The mica belt stretches from Gurpa in Gaya district in the west through Nawada, Koderma, Hazaribagh, Giridih in Jharkhand and Jamui as well as Bhagalpur district of the Bihar state in the east. Its maximum width is about 40 km at Koderma-Hazaribagh-Nawada area.