The correct answer is: d) All of the above.
Meghalaya is a state in northeastern India. It is known for its natural beauty, including its many hills and forests. The state also has a rich mineral deposit, including sillimanite, copper, and gold.
Sillimanite is a type of aluminum silicate mineral. It is used in the manufacture of ceramics, glass, and other products. Copper is a metal that is used in a variety of products, including electrical wiring, plumbing, and coins. Gold is a precious metal that is used in jewelry and other decorative items.
The mineral deposits in Meghalaya are important to the state’s economy. They provide jobs and income for many people. The minerals are also exported to other countries.
However, the mining of minerals can also have negative environmental impacts. It can pollute the air and water, and it can damage the land. It is important to balance the economic benefits of mining with the environmental costs.
The government of Meghalaya is working to develop the state’s mineral resources in a sustainable way. They are working to reduce the environmental impact of mining, and they are working to ensure that the benefits of mining are shared by all of the people of Meghalaya.