NCERT Class 10 Geography Fifth Chapter Minerals and Energy Resources Solution
NCERT Class 10 Geography Chapter 5 Solution: Dear students Here in this post we are posted Fifth Chapter Minerals and Energy Resources full exercise questions & answer by our arts teacher. This Solution is helpful for CBSE English medium students. Download this 5th Chapter Geography solution & prepare your homework.
(1.) Multiple choice questions.
(i) Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered material?
A:- (b) bauxite
(ii) Koderma, in Jharkhand is the leading producer of which one of the following minerals?
A:- (b) mica
(iii) Minerals are deposited and accumulated in the stratas of which of the following rocks?
A:- (a) sedimentary rocks
(iv) Which one of the following minerals is contained in the Monazite sand?
A:- (c) thorium
(2)
(i) Distinguish between the following in not more than 30 words.
(ii) What is a mineral?
Ans. Geologists define mineral as a “homogenous, naturally occurring substance with a definable internal structure.”
(iii) How are minerals formed in igneous and metamorphic rocks?
A:- In igneous and metamorphic rocks minerals may occur in the cracks, crevices, faults or joints. The smaller occurrences are called veins and the larger are called lodes.
(iv) Why do we need to conserve mineral resources ?
A:- Mineral resources are, therefore, finite and non-renewable. That is why we should conserve minerals so that future generations can use them.
(3.)
(i) Describe the distribution of coal in India.
A:- India, coal is the most abundantly available fossil fuel. It provides a substantial part of the nation’s energy needs. It is used for power generation, to supply energy to industry as well as for domestic needs. India is highly dependent on coal for meeting its commercial energy requirements. coal is formed due the compression of plant material over millions of years. Lignite is a low grade brown coal, which is soft with high moisture content. The principal lignite reserves are in Neyveli in Tamil Nadu and are used for generation of electricity. Coal that has been buried deep and subjected to increased temperatures is bituminous coal. It is the most popular coal in commercial use. Metallurgical coal is high grade bituminous coal which has a special value for smelting iron in blast furnaces. Anthracite is the highest quality hard coal. The major resources of Gondwana coal, which are metallurgical coal, are located in Damodar valley Jharia, Raniganj, Bokaro are important coalfields. The Godavari, Mahanadi, Son and Wardha valleys also contain coal deposits. Tertiary coals occur in the north eastern states of Meghalaya, Assam, Arunachal Pradesh and Nagaland.
(ii) Why do you think that solar energy has a bright future in India.
Ans. India is a tropical country. It has enormous possibilities of tapping solar energy. Most of the regions of India record high temperature especially during the summer. Photovoltaic technology converts sunlight directly into electricity. Solar energy is fast becoming popular in rural and remote areas. It has been used for cooking heating of water etc.
Some big solar power plants are being established in different parts of India which will minimise the dependence of rural households on firewood and dung cakes, which in turn will contribute to environmental conservation and adequate supply of manure in agriculture.
Chapter 5 Important Questions (MCQ, Fill in the blanks, Short Questions, Long Question)