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The examples of minerals formed as a result of evaporation are: a Iron, copper and lead b Gold, silver and platinum c Gypsum, potash salt and sodium salt d None of the above. Answer: c Gypsum, potash salt and sodium salt Gypsum, potash salt and sodiu? Magnesium and bromine are largely derived from: a Placer deposits b Sea-shores c Ocean water d All the above. Answer: a Gujarat and Assam Most of the petroleum deposits are found in the states of Gujarat and Assam.
Ferrous minerals account for about ���������� of the total value of the production of metallic minerals. The ore which is the basic mineral and the back-bone of industrial development is: a Bauxite b Copper ore c Iron ore d None of the above. Answer: c Iron ore Iron ore is the basic mineral and the backbone of industrial development. Major metallic minerals like tin, copper, zinc and lead etc.
The ocean water contain vast quantities of minerals, but most of these are too widely diffused to be of economic significance. Metallurgical coal, is high grade bituminous coal which has a special value for smelting iron in blast furnaces. Most of the petroleum occurrences in India are associated with anticlines and fault traps in the rock formations of the tertiary age. The railway lines and the ��������� of the roads are made from minerals.
Major ��������� minerals are obtained from veins and lodes. Some minerals such as gypsum, potash salt, etc. Assam has most of the ��������� deposits. Rajasthan with the rock systems of the peninsula, has reserves of many ��������� minerals. Iron ore is the basic mineral and the ��������� of industrial development. Nearly ��������� kg of manganese is required to manufacture one tonne of steel.
India is critically deficient in the reserve and production of ���������. Question 3. What is the difference between an open-pit mine, a quarry and an underground mine with shafts? Question 4. Superimpose the maps showing distribution of iron ore, manganese, coal and iron and steel industry. Do you see any correlation? Answer: The iron and steel industries are located in the same regions of India where the iron ore, coal and manganese mines are located.
As coal and manganese are required as inputs to the iron and steel industry, their availability in the same region saves on transportation costs as well as on ease of availability. Thus, it is profitable to locate these industries in the regions where these minerals are found. Question 5. Locate the mines of bauxite on the physical map of India. Question 6. Study the maps to explain why Chota Nagpur is a storehouse of minerals. Answer: Chota Nagpur is a storehouse of minerals because of the following reasons.
Question 7. Make a list of items where substitutes are being used instead of minerals. Where are these substitutes obtained from? Answer: Natural gas and oil may be the substitute of coal. Wood or plastic may be substitute of steel, iron and copper. Answer the following questions in about 30 words. Answer: Mineral is a homogenous, naturally occurring substance with a definable internal structure. Minerals are found in varied forms in nature, ranging from the hardest diamond to the softest talc.
Answer: In igneous and metamorphic rocks, minerals occur in the cracks, crevices, faults or joints. The smaller occurrences are called veins and the larger are called lodes. Metallic minerals like tin, copper, zinc and lead etc. This chapter tells you about the role played by agriculture in the Indian economy. Get NCERT Solutions on exercise questions asking you to explain the cropping pattern, the types of farming, technological reforms and the impact of globalisation on agriculture.
Additionally, get answers by experts on topics such as conventional energy, non-conventional energy and energy conservation. Some of the important concepts discussed in this CBSE Class 10 chapter include control of environmental degradation, industrial pollution, the contribution of industries to the economy etc. Write correct answers on sustainable development and planned industrial development with our expert solutions for questions in your NCERT Geography textbook.
As per the CBSE Class 10 Geography syllabus, this chapter helps you understand the role played by tourism and trade in the economic development of a country.
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