The correct answer is: Both (A) and (B).
Silica sand is a type of sand that is composed primarily of silicon dioxide. It is a very common mineral and is found in many parts of the world. In Himachal Pradesh, silica sand is found in the districts of Una and Hamirpur.
Silica sand is used in a variety of industries, including the construction industry, the glass industry, and the foundry industry. It is also used in the manufacture of abrasives, such as sandpaper and grinding wheels.
Silica sand is a valuable resource and is used in a variety of applications. It is important to ensure that silica sand is extracted and used in a sustainable manner.
Option A: Una
Una is a district in the Indian state of Himachal Pradesh. It is located in the central part of the state and is bordered by the districts of Hamirpur, Bilaspur, Kangra, and Chamba. The district has a population of over 1.2 million people and its headquarters is the town of Una.
Silica sand is found in abundance in the district of Una. It is used in a variety of industries, including the construction industry, the glass industry, and the foundry industry. It is also used in the manufacture of abrasives, such as sandpaper and grinding wheels.
Option B: Hamirpur
Hamirpur is a district in the Indian state of Himachal Pradesh. It is located in the central part of the state and is bordered by the districts of Una, Bilaspur, Kangra, and Chamba. The district has a population of over 1.1 million people and its headquarters is the town of Hamirpur.
Silica sand is found in abundance in the district of Hamirpur. It is used in a variety of industries, including the construction industry, the glass industry, and the foundry industry. It is also used in the manufacture of abrasives, such as sandpaper and grinding wheels.