Resources and Development Test - 6

Uranium is found in Udaipur, Alwar and Jhunjhunu districts of Rajasthan.

Mumbai High was discovered in 1973. It lies 160 km from Mumbai in the Arabian Sea. Mumbai High field was discovered by a Russian and Indian oil exploration team operating on seismic exploration during mapping of the Gulf of Khambat.

Odisha is the largest producer of bauxite. The important deposits of bauxite are associated with the Eastern Ghat Super Group of rocks which form the major component of the east coast bauxite deposits. The deposits are of lateritic type and owe their origin to in situ chemical weathering of khondalites and charnockites.

Ferrous minerals contain a large percentage of the iron content. Non-ferrous minerals do not. Bauxite, copper, gold, lead, zinc, aluminium are some examples of non-ferrous minerals.

Hydel power is renewable source of energy. Sustainable energy resources are only the renewable energy sources like solar, wind, hydro-geothermal and biomass. These energy sources are environmental friendly.

The Chhotanagpur plateau is indeed the single richest mineral belt of India. Also, it is one of the richest mineral containing area in the whole world. Chhotanagpur plateau has frequently been called the Ruhr of India after a similar mineral-rich area of that name (Ruhr) in Germany. Coal, iron ore, limestone bauxite and copper are the principle products of this belt.

Brahamaputra river basin produces 41% of the country ’s hydro electricity.

The north-western belt extends from Gulf of Khambat in Gujarat and Aravallis in Rajasthan. The major minerals of this region are petrol, zinc and copper.

Bio-energy is a potential source of energy derived from biological waste. It is used as electrical energy, heat energy or gas for cooking. It is very prominent in rural households.

The correct answer is Lignite.
Lignite is called as "brown diamond ".

• Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat.
• It is considered the lowest rank of coal due to its relatively low heat content.
• It has a carbon content around 25 to 35 per cent.
• It is mined all around the world and is used almost exclusively as a fuel for steam-electric power generation. Lignite is the most harmful coal for health.