The correct answer is: d) All of the above.
Arunachal Pradesh is a state in north-eastern India. It is the largest state in the country by area, and the 20th most populous. The state is home to a diverse range of ethnic groups, and its economy is based on agriculture, forestry, and mining.
Arunachal Pradesh has significant reserves of coal, limestone, and graphite. The state also has reserves of dolomite, marble, and quartz. These minerals are used in a variety of industries, including construction, manufacturing, and energy.
Dolomite is a type of limestone that is rich in magnesium. It is used in a variety of applications, including the manufacture of cement, glass, and ceramics.
Marble is a type of limestone that is composed of calcium carbonate. It is used in a variety of applications, including the manufacture of countertops, flooring, and sculptures.
Quartz is a type of mineral that is composed of silicon dioxide. It is used in a variety of applications, including the manufacture of glass, electronics, and jewelry.
The reserves of these minerals in Arunachal Pradesh have the potential to contribute significantly to the state’s economy. However, the development of these resources must be done in a sustainable manner that protects the environment and the rights of the people who live in the state.