The correct answer is: a) Coal and limestone.
Coal and limestone are the two most important minerals extracted in Mizoram. Coal is used for power generation and limestone is used in the manufacture of cement. Other minerals extracted in Mizoram include sand and gravel, precious gemstones, and iron ore.
Coal is a fossil fuel that is formed from the remains of plants that lived millions of years ago. It is a non-renewable resource and its use contributes to climate change. Limestone is a sedimentary rock that is formed from the remains of marine organisms. It is a non-metallic mineral that is used in a variety of industries, including construction, manufacturing, and agriculture. Sand and gravel are non-metallic minerals that are used in the construction industry. Precious gemstones are minerals that are prized for their beauty and rarity. Iron ore is a metallic mineral that is used in the manufacture of steel.
The mining of minerals in Mizoram has a significant impact on the environment. The mining process can lead to deforestation, soil erosion, and water pollution. It can also have a negative impact on the health of people who live near mines.
The government of Mizoram is working to develop a sustainable mining industry in the state. The government is working to reduce the environmental impact of mining and to ensure that the benefits of mining are shared by all people in Mizoram.