The correct answer is A. a-2, b-1, c-3, d-4.
Copper is found in Kullu, nickel is found in Sirmaur, rock salt is found in Mandi, and asbestos is found in Shimla.
Copper is a reddish-brown metal that is used in a variety of products, including electrical wiring, plumbing, and coins. It is found in the Earth’s crust in the form of ores, which are rocks that contain copper minerals. The most common copper ore is chalcopyrite, which is a mixture of copper, iron, and sulfur.
Nickel is a silvery-white metal that is used in a variety of products, including stainless steel, batteries, and coins. It is found in the Earth’s crust in the form of ores, which are rocks that contain nickel minerals. The most common nickel ore is pentlandite, which is a mixture of nickel, iron, and sulfur.
Rock salt is a mineral that is composed of sodium chloride. It is the most common salt in the world and is used in a variety of products, including food, water treatment, and road de-icing. Rock salt is found in deposits that were formed when ancient oceans evaporated.
Asbestos is a group of minerals that are resistant to heat and fire. It is used in a variety of products, including insulation, roofing, and brake pads. Asbestos is found in deposits that were formed when ancient seafloor sediments were buried and subjected to heat and pressure.
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