CBSE Questions for Class 10 Geography Minerals And Energy Resources Quiz 7 - MCQExams.com

Jharkhand accounts for 25 per cent of reserves and over 14 per cent of the total iron ore production of the country. Iron ore mining first of all started in the Singhbhum district in 1904 (then a part of Bihar). Iron ore of Singhbhum district is of highest quality and will last for hundreds of years.

Singhbhum is known for its iron ore deposits and it provides for the iron ore requirements of the IISCO steel plants located at Hirapur, Kulti and Burnpur.

In coal patches and as methane clathrates, natural gas is discovered from deep underground stone structures or associated with other hydrocarbon reserves. Fossil fuels are located close to natural gas and with it. Tripura, Andra Pradesh, Assam, Telangana Orrisa, Gujarat, Bombay are all the places in India where natural gas is found in the coastal areas that are major producers of natural gas.

The correct answers are A, B and C.

Open-pit mine can be used in coal pulling out, and they are used broadly in "hard rock" pulling out for ores such as metal ores, copper, gold, iron, aluminium, and many minerals. 

In a release pit coal mine, the pit base would be the bottom mined coal layer increase, since it is usually possible to take out several seams while surface pulling out petroleum. 

In a hard rock mine, the base of the ditch would be the lowest level (elevation) that mining would be conducted on the ore being mined.

Thus, the correct option is D.

Brazil is the major manufacturer of high-quality iron-ore in the world. Chile and Peru are the most important producers of copper. Brazil and Bolivia are among the world’s major producers of tin. 

There are also huge deposits of gold, silver, zinc, chromium, manganese, bauxite, mica, platinum, asbestos and diamond in South America. 

In Indian states of Chhattisgarh, Madhya Pradesh, Karnataka, Jharkhand, Odisha, Goa, Maharashtra, Andhra Pradesh, Kerala, Rajasthan and Tamil Nadu iron ores are found extensively.

Thus, A, B and D are correct.

Odisha alone accounts for 51 percent of the country's bauxite wealth, followed by Andhra Pradesh (16 percent), Gujarat (9 percent), Jharkhand (6 percent), Maharashtra (5 percent) and Madhya Pradesh & Chhattisgarh (4 percent each). In Odisha and Andhra Pradesh, large bauxite resources are concentrated in the East Coast bauxite deposits.

The correct answer is D .

• Bauxite is the principal ore of aluminum.

• In India Iron ore is most often found in the form of hematite and magnetite though goethite, limonite, and siderite types are also common. 
  
• The iron itself is usually found in the form of magnetite, hematite, goethite, limonite or siderite. Hematite is also known as 'natural ore'. 

Bauxite is a sedimentary rock with comparatively high aluminium content. It is the world's main source of aluminium. Bauxite comprises mainly of the aluminium minerals, gibbsite,  boehmite, and diaspore, mixed with the two iron oxides goethite and haematite, the aluminium clay mineral kaolinite and small amounts of anatase and ilmenite. 

Australia is the leading manufacturer of bauxite in the world. It is a most important producer of gold, diamond, iron ore, tin and nickel. It is as well rich in copper, lead, zinc and manganese. Kalgoorlie and Coolgardie areas of Western Australia contains the major deposits of gold.

In Jamaica, the mining areas of bauxite are located in the western and central parts of the island. 

Thus, the correct answer is A and B.

• Sulfur is one of the most important elements. 
  
•  It is used to make sulfuric acid, which is the most abundantly made industrial chemical.
  
•  The element itself is an essential plant nutrient.
  

• Non-metallic minerals are those which do not yield new products on melting. 
  
• For example, phosphorus, iodine, carbon, selenium, limestone, dolomite, gemstones, clay, mica, sulphur, etc., are the non-metallic minerals.

• The Frasch process is a method to extract sulfur from underground deposits.
  
•  It is the only economic method of recovering sulfur from elemental deposits.
  
• In the Frasch process, superheated water is pumped into the sulfur deposit; the sulfur melts and is extracted. 
  
• The Frasch process is able to produce high purity sulfur.
  
• In the Frasch process, three concentric tubes are introduced into the sulfur deposit. Superheated water (443k,165 °C, 2.5-3 MPa) is injected into the deposit via the outermost tube. Sulfur (m.p. 115 °C) melts and flows into the middle tube.
  
•  Water pressure alone is unable to force the sulfur into the surface due to the molten sulfur's greater density, so hot air is introduced via the innermost tube to froth the sulfur, making it less dense, and pushing it to the surface.
  
• The sulfur obtained can be very pure (99.7 - 99.8%).
  
•  In this form, it is light yellow in color
  

• Minerals are naturally occurring inorganic solids that have a crystalline structure and definite chemical composition.
  
• Minerals are referred to as naturally occurring because they are formed through natural geological processes.

Asbestos was seen as a reasonably priced preservative that could be used to make a variety of reasonably priced, fire-resistant products, including materials such as roofing shingles, wallboard and concrete. It was natural fibre into textiles to make fireproof fabric and cloths, plus fireproof insulations and coatings. 

Asbestos workings well as a fireproof material because of its chemical properties. It is non-flammable and has a melting point of around 1600 degrees Fahrenheit. It consists of lightweight fibbers’ that is stronger than cotton, rayon or nylon. Those fibbers are also flexible enough to be woven with other fibres, mixed and sprayed with cement or packed with other materials.

Thus, the correct option is C.

• Mica is a non-metallic mineral which can be split into thin sheets.
  
• It is used in electric and electronic industries.

• Mica is a non-metallic mineral which can be split into thin sheets.
  
• It is used in electric and electronic industries.

• Sulfur as a Native Element Mineral.
  
•  As a mineral, sulfur is a bright yellow crystalline material.

For over hundred years, India had enjoyed monopoly in production and export of sheet mica in the world. Of late, there has been a steep decline in mica production in India, largely due to technological improvements that facilitate use of reconstructed mica and emergence of mica substitutes consequently resulting into fall in the demand of natural mica in the world market. Still India stays at a higher position in the list of largest producers of mica in the world.