The correct answer is: Copper.
The Chaumukh region of Sundernagar has evidences of copper. Copper is a chemical element with the symbol Cu and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. Copper is one of the most widely used metals in the world, and is a major component of many alloys, including brass and bronze.
Oil is a naturally occurring liquid found in geological formations beneath the Earth’s surface. It is formed when organic matter, such as plant and animal remains, is subjected to intense heat and pressure over millions of years. Oil is a valuable resource, and is used to produce gasoline, diesel fuel, and other petroleum products.
Slate is a type of sedimentary rock that is formed from mudstone or shale. It is a fine-grained rock that is typically black, gray, or green in color. Slate is used to make roofing tiles, countertops, and other building materials.
Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal that is found in the Earth’s crust. Iron is a very important metal, and is used to make steel, which is used in many different products, including cars, buildings, and bridges.