NCERT Solutions Class 8 Geography Chapter 3 Mineral and Power Resources– Here are all the NCERT solutions for Class 8 Geography Chapter 3. This solution contains questions, answers, images, explanations of the complete chapter 3 titled Mineral and Power Resources of Geography taught in class 8. If you are a student of class 8 who is using NCERT Textbook to study Geography, then you must come across chapter 3 Mineral and Power Resources. After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 8 Geography Chapter 3 Mineral and Power Resources in one place.
NCERT Solutions Class 8 Social Science Geography Chapter 3 Mineral and Power Resources
Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Social Science Geography for Class 8 so that you can refer them as and when required. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.
For a better understanding of this chapter, you should also see summary of Chapter 3 Mineral and Power Resources , Social Science Geography, Class 8.
| Class | 8 |
| Subject | Social Science Geography |
| Book | Resource And Development |
| Chapter Number | 3 |
| Chapter Name |
Mineral and Power Resources |
NCERT Solutions Class 8 Social Science Geography chapter 3 Mineral and Power Resources
Class 8, Social Science Geography chapter 3, Mineral and Power Resources solutions are given below in PDF format. You can view them online or download PDF file for future use.
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Question & Answer
Q.1: Identify the Canadian Shield, the Appalachians, Western Cordilleras and Lake Superior with the help of an atlas.
Ans : DIY
Q.2: List uses of any five minerals.
Ans : DIY
Q.3: Answer the following questions.
(i) Name any three common minerals used by you every day.
(ii) What is an ore? Where are the ores of metallic minerals generally located?
(iii) Name two regions rich in natural gas resources.
(iv) Which sources of energy would you suggest for
(a) rural areas
(b) coastal areas
(c) Arid regions
(v) Give five ways in which you can save energy at home.
Ans : (i) Three common minerals used every day: (a) Copper − Electric wires (b) Talc − Talcum powder (c) Lead − Batteries (ii) Ores are the rocks from which minerals are mined. The ores of metallic minerals are generally found in igneous and metamorphic rock formations that form large plateaus. (iii) Russia and the United Kingdom are the two regions rich in natural gas resources. (iv) (a) Biogas energy for rural areas (b) Hydel and tidal energy for coastal areas (c) Wind and solar energy for arid regions (v) Five ways in which energy can be saved at home: (a) Switching off lights, fans and other electrical appliances when not in use (b) By seeing to it that electrical devices are operating efficiently; for example, defrosting refrigerator regularly and not keeping the refrigerator door open for longer than necessary (c) Using energy-efficient devices such as fluorescent bulbs and tubes (d) Using energy efficiently while cooking; for example, keeping the lids of pans on while cooking (e) Unplugging electrical devices when not in use prevents leakage of electricity; thus saving energy
Q.4: Tick the correct answer.
(i) Which one of the following is NOT a characteristic of minerals?
(a) They are created by natural processes.
(b) They have a definite chemical composition.
(c) They are inexhaustible.
(d) Their distribution is uneven.
(ii) Which one of the following is a leading producer of copper in the world?
(a) Bolivia
(b) Ghana
(c) Chile
(d) Zimbabwe
(iii) Which one of the following practices will NOT conserve LPG in your kitchen.
(a) Soaking the dal for some time before cooking it.
(b) Cooking food in a pressure cooker.
(c) Keeping the vegetables chopped before lighting the gas for cooking.
(d) Cooking food in an open pan kept on low flame.
Ans : (i)-(c) (ii)-(b) (iii)-(c) (iii)-(d)
Q.5: Give reasons.
(i) Environmental aspects must be carefully looked into before building huge dams.
(ii) Most industries are concentrated around coal mines.
(iii) Petroleum is referred to as “black gold”.
(iv) Quarrying can become a major environmental concern.
Ans : (i) Dams help in creating hydroelectric power, which solves the energy problems of a region. They also help farmers as the water released from dams is used for irrigation. However, dams have a negative impact on the environment as well. They adversely affect the surrounding ecosystems by destroying the local flora and fauna, by displacing the local community, by changing the natural course of rivers, etc. Therefore, before a dam is built at a site, it should be ascertained whether its benefits justify the damages that it would inevitably cause to the various ecosystems. If they do justify, then steps should be taken to minimise the damages to the flora and fauna, and to relocate the local community. But if they don’t, then environmental conservation should be given the priority over the building of the dam. (ii) Coal is the most abundant fossil fuel. It is widely used as a source of energy. It is also used as a raw material in several industries. Most industries are located around coal mines as being situated close to coal mines proves to be cost effective. Coal can easily be transported from the mines to the industries, and this reduces both time and cost of transportation. (iii)The term “black gold” is used with reference to petroleum and its various derivatives. The word “black” refers to the colour of petroleum in its crude form. The word “gold” implies that petroleum and all the various products of petroleum (like diesel, petrol, kerosene, wax, plastics and lubricants) are as valuable to human society as the metal gold. (iv) Quarrying is an extraction process by which minerals lying near the Earth’s surface are dug out. This process can adversely affect the environment in different ways. The digging involves clearing of vegetation. This destroys the top soil, which contains the humus required for plant growth. The quarrying process involves the use of explosives and earth-moving equipments. These cause noise pollution, and may also damage nearby buildings, dams or other such structures. The dust generated during quarrying and the fossil fuels burnt while operating the equipments contribute to air pollution, which in turn affects the health of the miners and the local population.
NCERT / CBSE Book for Class 8 Social Science Geography
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