The correct answer is C. a-2, b-1, c-3, d-4.
Manganese is found in Jojahatu, Jharkhand. Chromite is found in Noamundi, Odisha. Copper is found in Ghatsila, Jharkhand. Bauxite is found in Ranchi, Jharkhand.
Manganese is a chemical element with the symbol Mn and atomic number 25. It is a metal in the periodic table that is essential to human nutrition. Manganese is found in many foods, including whole grains, nuts, and green vegetables. It is also used in many industrial applications, such as the production of steel and batteries.
Chromite is a mineral that is composed of chromium and iron. It is a black ore that is used to produce chromium metal. Chromium is a metal that is used in many industrial applications, such as the production of stainless steel and other alloys.
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 used in many electrical and electronic applications, as well as in construction and manufacturing.
Bauxite is an ore that is composed of aluminum oxide. It is the main source of aluminum metal. Aluminum is a lightweight metal that is used in many applications, such as the production of aircraft, cars, and cans.