The correct answer is: a) Coal
Coal is a valuable mineral resource found in Meghalaya. It is a fossil fuel that is formed from the remains of ancient plants and animals that have been buried and subjected to heat and pressure over millions of years. Coal is used to generate electricity, produce steel, and make other products.
Iron ore is a mineral that is used to make iron and steel. It is found in rocks and minerals that are rich in iron. Iron ore is mined in many parts of the world, including Meghalaya.
Gold is a precious metal that is used to make jewelry and other objects. It is found in rocks and minerals that are rich in gold. Gold is mined in many parts of the world, including Meghalaya.
Diamonds are a precious gemstone that is found in rocks and minerals that are rich in diamonds. Diamonds are mined in many parts of the world, including Meghalaya.
Coal is the most valuable mineral resource found in Meghalaya. It is used to generate electricity, produce steel, and make other products. Coal is a non-renewable resource, which means that it cannot be replaced once it is used up. It is important to use coal wisely and to develop alternative energy sources.