The correct answer is: A. Sapphire
Sapphire is a precious gemstone that is a variety of the mineral corundum. It is typically blue in color, but it can also be found in other colors, such as yellow, green, orange, pink, purple, and white. Sapphire is a hard stone, with a Mohs hardness of 9. It is often used in jewelry, and it is also used in industrial applications, such as abrasives and cutting tools.
Bauxite is an ore of aluminum. It is a soft, earthy rock that is typically red, brown, or yellow in color. Bauxite is found in tropical and subtropical regions, and it is the main source of aluminum. Aluminum is a lightweight metal that is used in a variety of products, such as cars, airplanes, and buildings.
Copper is a reddish-brown metal that is found in nature. It is a good conductor of electricity and heat, and it is used in a variety of products, such as electrical wiring, plumbing, and coins. Copper is also used in jewelry and other decorative items.
Manganese is a grayish-black metal that is found in nature. It is a good conductor of electricity and heat, and it is used in a variety of products, such as batteries, steel, and fertilizer. Manganese is also used in some medical treatments.
Kargil district in Ladakh has deposits of sapphire. Sapphire is a precious gemstone that is a variety of the mineral corundum. It is typically blue in color, but it can also be found in other colors, such as yellow, green, orange, pink, purple, and white. Sapphire is a hard stone, with a Mohs hardness of 9. It is often used in jewelry, and it is also used in industrial applications, such as abrasives and cutting tools.