Mineral and Power Resources Class 8 Questions and Answers Provided helps you to answer complex Questions too easily. You can use them while preparing for board exams and all of them are given by subject experts. Reading NCERT Solutions for Class 8 Social Science Geography Chapter 3 Mineral and Power Resources familiarizes you with the kind of questions appearing in the board exams. Students are advised to read these solutions on a regular basis to score well.
Mineral and Power Resources Class 8 Questions and Answers Geography Chapter 3
Make your learning experience enjoyable by preparing from the quick links available on this page. Use the Class 8 SST Geography Chapter 3 NCERT Solutions and get to know different concepts involved. All the Solutions are covered as per the latest syllabus guidelines. Knowing the NCERT Class 8 Geography Chapter 3 Questions and Answers helps students to attempt the exam with confidence.
Geography Class 8 Chapter 3 NCERT Textbook Questions and Answers
Let Recall
Question 1.
Answer the following questions.
(i) Name any three common minerals used by you every day.
(ii) What is 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
(а) rural areas
(b) coastal areas
(c) Arid regions
(v) Give five ways in which you can save energy at home.
Answer:
(i) The three common minerals used by us every day are petroleum, iron and salt.
(ii) Rocks from which minerals are mined are known as ores. Ores of metallic minerals are generally found in igneous and metamorphic rock formation that forms large plateaus.
(iii) In India Jaisalmer, Krishna Godavari delta, Tripura and some areas off-shore in Mumbai have natural gas resources.
(iv)
- Rural areas: Rural areas with proper availability of almost all natural resources like solar, wind and tidal they should use the non-conventional source of energy according to the availability in adundance or in sufficiency.
- Coastal areas: They should use petroleum, tidal power and wind power.
- Arid region: For this region solar energy and geothermal power will be the suitable one according to the availability in area or region.
(v) Five ways to save energy at home:
- Use of solar energy should be increased.
- Use of biogas in place of cooking gas.
- Switch off the electric items when not in use.
- Start afforestation.
- Use of solar and electrically charged vehicles in place of petroleum using vehicles.
Question 2.
Tick the correct answer.
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.
Answer:
(c) They are inexhaustible.
(ii) Which one of the following is NOT a producer of mica?
(a) Jharkhand
(b) Karnataka
(c) Rajasthan
(d) Andhra Pradesh
Answer:
(b) Karnataka
(iii) Which one of the following is a leading producer of copper in the world?
(a) Bolivia
(b) Ghana
(c) Chile
(d) Zimbabwe
Answer:
(c) Chile
(iv) 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.
Answer:
(d) Cooking food in an open pan kept on low flame.
Question 3.
Give reasons.
(i) Environmental aspects must be carefully looked into before building huge dams.
(it) Most industries are concentrated around coal mines.
(iii) Petroleum is referred to as “black gold”.
(iv) Quarrying can become a major environmental concern.
Answer:
(i) Before building huge dams it should be kept in mind that the water storage will affect any of the forest or livelihood or not or will the establishment of dam result in over cutting of trees.
(ii) Industries are concentrated around coal mines because this concentration ensures the availability of many types of fuel in form of which the coal can be used as coal is the most abundantly found fossil fuel.
(iii) Petroleum is found between the layer of rocks and is drilled from oil fields located in off-shore and coastal areas. This is then sent to refineries which process the crude oil and produce a variety of products like diesel, petrol, kerosene, wax, plastics and lubricants. Petroleum and its derivatives are called as black gold as they are very valuable.
(iv) Quarrying means that minerals that lie near the surface are simply dugout and in the digging process it makes hollowness in the earth surface that not only affects the nearby area but also makes the area touched by it as unstable.
Question 4.
Distinguish between the following.
(i) Conventional and non-conventional sources of energy
(ii) Biogas and natural gas
(iii) Ferrous and nonferrous minerals
(iv) Metallic and nonmetallic minerals
Answer:
(i) Conventional and non-conventional sources of energy
| Conventional Source of energy | Non-conventional Source of energy |
| The energy source which has been in common use for a long time. For example; Firewood and fossil fuels are two main conventional energy sources. |
The increasing use of fossil fuels is leading to its shortage so in order to preserve the fossils from getting exhausted there is need for adoption of Non-conventional sources of energy that are solar, wind, tidal which are renewable sources. |
(ii) Biogas and natural gas
| Biogas | Natural gas |
| (i) Organic waste such as dead plant and animal material, animal dung and kitchen waste can be converted into a gaseous fuel called biogas.
(ii) Biogas is an excellent fuel for cooking and producing huge amount of organic manure every year. (iii) It is renewable. |
(i) Found with petroleum deposits and is released when crude oil is brought to the surface.
(ii) It can be used as a domestic and industrial fuel. (iii) Russia, Norway, UK and the Netherlands are the major producers of Natural gas. (iv) Its improper use can lead to its depletion. |
(iii) Ferrous and Nonferrous minerals
| Ferrous | Nonferrous minerals |
| (i) These contain iron. (ii) For example, iron ore, manganese, chromite. |
(i) Does not contain iron but may contain some other metal. (ii) For example, gold, silver, copper, lead. |
(iv) Metallic and Nonmetallic minerals
| Metallic | Nonmetallic minerals |
| (i) Minerals that contain metal in raw form. (ii) It may be ferrous or non-ferrous. (iii) For example, Iron ore, bauxite, copper, gold, silver, etc. |
(i) Minerals that do not contain metals. (ii) For example, limestone, mica, gypsum, etc. |
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