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Chapter 3 – Mineral and Power Resources – NCERT Solutions for Class 8 Social Science – Free PDF Download
INFINITY LEARN experts have produced NCERT Solutions Class 8 Social Science Chapter 3 to cover all of the concepts in the chapter in a simplified Q&A format. NCERT Solutions for Class 8 Social Science Chapter 3 provides the clearest and most straightforward explanations for all of the questions in this chapter’s exercise. NCERT Solutions for Class 8 Social Science Material 3 assists students in better understanding the chapter and performing at their best in the exam. INFINITY LEARN is a website that offers students free NCERT solutions and other study tools. Maths Students who are looking for new ways to solve problems. They can get Class 8 Maths NCERT Solutions to assist them to revise the entire syllabus and get better grades in their exams. These solutions are available for free download and reference on INFINITY LEARN.
Answer the following questions.
(i) Name any three common minerals used by you every day.
- Coal, petroleum, natural gas, salt are the common minerals used every day.
(ii) What is an ore? Where are the ores of metallic minerals generally located?
- A rock that contains enough minerals to make it economically viable for mining is called an ore.
- Generally, metallic minerals are found in igneous and metamorphic rock formations that form large plateaus.
(iii) Name two regions rich in natural gas resources.
- Russia, Norway, the united kingdom, and the Netherlands are the major producers of natural gas resources.
In India Jaisalmer, Krishna, Godavari delta, Tripura and some areas offshore in Mumbai have natural gas resources.
(iv) Which sources of energy would you suggest for
(a) rural areas (b) coastal areas (c) Arid regions
- rural areas: thermal energy/ Hydel energy
- Coastal areas: Natural gas /Hydel energy
- Arid region: Wind energy
(v) Give five ways in which you can save energy at home.
- We should save electricity. We should switch off the lights and fans wherever it is not required.
- Petrol should be saved by not using the two-wheelers for short distances.
iii) Natural gas also can be saved.
- Always replace the wire fittings when they are aged.
- Repair of equipment regularly
Tick the correct answer.
(i) Which one of the following is NOT a characteristic of minerals?
- They are created by natural processes.
- They have a definite chemical composition.
- They are inexhaustible.
- Their distribution is uneven.
(ii) Which one of the following is a leading producer of copper in the world?
- Bolivia
- Ghana
- Chile
- Zimbabwe
(iii) Which one of the following practices will NOT conserve LPG in your kitchen.
- Soaking the dal for some time before cooking it.
- Cooking food in a pressure cooker.
- Keep the vegetables chopped before lighting the gas for cooking.
- Cooking food in an open pan kept on low flame.
Answer: (i) (c), (ii) (b), (iii) (d)
Give reasons.
(i) Environmental aspects must be carefully looked into before building huge dams.
- The environmental aspects that must be carefully looked into before building huge dams are:
- Dams create an imbalance in the earth’s equilibrium.
- Deforestation leads to environmental pollution.
iii) People become displaced causing untold hardships.
- Earthquakes and floods threats.
- Soil erosion and silting may take place.
(ii) Most industries are concentrated around coal mines.
- Coal is an important energy for factories. It is used as a domestic fuel.
(iii) Petroleum is referred to as “black gold”.
- Petroleum is referred to as “black gold because when crude oil is extracted from the land it is black in color. People call it gold because of its oils and value. It is very difficult to find.
(iv) Quarrying can become a major environmental concern.
- Minerals that lie near the surface are simply dug out of the ground through a process called open-cast mining. Quarrying can become a major environmental concern because it destroys the flora and fauna around it. It destroys the humus of the soil, which is required for the growth of plants and crops. It produces dust, which causes air pollution and also produces noise pollution.
Distinguish between the following.
(i) Conventional and non-conventional sources of energy
| Conventional sources of Energy | Non-Conventional Sources of Energy | ||
| i. | Conventional sources of energy are those sources that have been in use from time immemorial. | i. | Non Conventional sources of energy have generally been identified in the recent past. |
| ii. | They are exhaustible | ii. | They are inexhaustible. |
| iii. | They cause pollution when used as they emit smoke and ash | iii. | They are generally pollution-free. |
| iv. | Their generation and use involve huge expenditure. | iv. | A very meager amount of money is required for their use. |
| v. | They are very expensive to be maintained. E.g. Coal, Minerals Oil, Natural Gas, etc. | v. | Less expensive and easy to maintain. E.g. Solar energy, Wind energy, etc. |
(ii) Biogas and natural gas
| Bio Gas | Natural Gas | ||
| i. | Biogas is obtained from shrubs, farm wastes, animal and human wastes. | i. | Natural gas is found generally with Petroleum. |
| ii. | It is used mainly in rural areas for domestic purposes. | ii. | It is used as means of energy, raw materials in fertilizer plants, and used as a domestic and industrial fuel. |
| iii. | It is renewable | iii. | Its improper use can lead to its depletion. |
(iii) Ferrous and nonferrous minerals
| Ferrous Minerals | Non-Ferrous Minerals | ||
| i. | The minerals having iron contents are called ferrous minerals. E.g: Iron ore, manganese ore, chromium cobalt. | i. | The minerals that do not possess iron contents are called non-ferrous minerals. E.g. Copper ore, tin, zinc, gold, silver, lead, tungsten, and nickel. |
| ii. | India abounds in ferrous minerals | ii. | India is deficient in non-ferrous minerals |
(iv) Metallic and non-metallic minerals
| Metallic Minerals | Non-metallic Minerals | ||
| i. | Metallic minerals contain metals in raw form. | i. | Non-metallic minerals do not contain metals. |
| ii. | Examples: Iron ore, bauxite | ii. | Examples: limestone, gypsum. |
NCERT Solutions for Class 8 Social Science – Resources and Development Chapter 3
On our online website and app, you can find NCERT Solutions for Class 8 Social Science Chapter 3 PDF quickly and for free. All of the crucial questions for exam preparation are included in the package. All of the queries have the greatest and most thoroughly explained responses. The finest material to prepare a student to achieve their best in the exam is NCERT Solutions Class 8 Social Science Chapter 3. This tutorial provides you with a clear idea and outcome, as well as well-explained topics.
Chapter 3 – Resources and Development NCERT Solutions for Class 8 Social Science Chapters
Chapter 3 of the NCERT Solutions for Class 8 Social Science is titled “Mineral and Power Resources”. The chapters cover all of the data on minerals and energy resources. The minerals, ores, and where we get all of the minerals are all described in detail in this chapter. The NCERT Solutions for Class 8 Social Science Chapter 3 content covers all of this ground in a clear and straightforward manner.
Here’s some more in-depth information regarding the chapter’s topic.
- 3.1 Answer the questions. 5 Questions
- 3.2 Multiple choice questions. 4 Questions
- 3.3 Give reasons. 4 Questions
- 3.4 Distinguish between the following.4 Questions
- 3.5 Exercise questions.
- 3.5.1 Multiple choice questions. 7 Questions
- 3.5.2 Fill in the blanks. 11 Questions
- 3.5.3 True or false. 9 Questions
- 3.5.4 Match the following.
- 3.5.5 Very short answer type questions. 14 Questions
- 3.5.6 Short answer type questions. 5 Questions
- 3.5.7 Long answer type questions. 2 Questions
Social Science Chapter in Class 8 Weightage of Wise Marks
Chapter 3 of Class 8 Social Science has the highest weightage of all the chapters. Because this is the most essential chapter, the majority of the questions on the exam will come from here. Students can achieve their best results in the exams by using NCERT Solutions for Class 8 Social Science. The material is created with the assistance of topic experts who refer to the most significant questions for exam preparation. Because time management is essential, you can choose from our clean and simple options.
What Is the Importance of NCERT Solutions for Class 8 Social Science Chapter 3?
- NCERT Solution for Class 8 Social Science Chapter 3 is created with the assistance of a teacher who is knowledgeable in the subject.
- The material comprises all of the chapter’s subjects and is organized in a point-by-point manner.
- All of the main themes and crucial concepts are properly discussed in NCERT Solutions for Class 8 Social Science Chapter 3.
- The content contains a plethora of additional practice problems and answers to help students prepare for their best performance.
- Students of all types benefit from the content since it prepares them to take the exam with confidence and achieve their best.
NCERT Solutions for Class 8 Social Science Geography Chapter 3 Mineral and Power Resources FAQs
What are the many methods for conserving energy and resources at home?
Solar panels can be used to store energy absorbed from sunshine and then used for a variety of purposes. Biogas can be used to cook food instead of LPG. People nowadays use washing machines and dryers to dry their garments. Instead of using the dryer, garments can be dried outside in the sun. Electricity is a vital component of our daily lives. Along with utilizing energy, many individuals squander it by unnecessarily turning on all of the electrical appliances. When not in use, it should be turned off.
Environmental problems should be thoroughly considered before large dams are built. Justify your actions?
Dams for personal use hurt the environment in a variety of ways. A large area is necessary for the dam to be built, and as a result, many trees in the vicinity are cut down. As a result, there are fewer trees, and as a result, pollution levels rise. The equilibrium in the earth's surface area is disrupted during the construction of the dam. A large number of people in that area must be replaced. They are relocated to new locations, which makes life difficult for them.
What can I study in Chapter 3 of NCERT Solutions for Class 8 Geography?
Resources and Development is the third chapter in the NCERT book for Class 8 Geography. This chapter covers a variety of subjects related to mineral and energy resources, as well as their availability. Other subjects covered in this chapter include the origins of various minerals and ores. The NCERT Solutions for Class 8 Geography Chapter 3 will assist students in comprehending the development of diverse human resources.
What are the key questions in Chapter 3 of NCERT Solutions for Class 8 Geography?
When studying for your Social Science exam, all of the questions in the NCERT Solutions for Class 8 Geography Chapter 3 should be taken seriously because they could appear on the question paper in any form. Prior to the exam, focus on practicing all NCERT Solutions at least twice. Important questions for Class 8 Geography Chapter 3 are available on the INFINITY LEARN app or website, which are offered by subject specialists.
What other chapters are covered in NCERT Solutions for Class 8 Geography except Chapter 3?
Except for Chapter 3 chapters, INFINITY LEARN's NCERT Solutions for Class 8 Geography cover the entire new CBSE syllabus, which consists of five chapters. NCERT Solutions are available for the following Class 8 Geography chapters: Resources (Chapter 1) Land, Soil, Water, Natural Vegetation, and Wildlife Resources (Chapter 2) Mineral and Energy Resources (Chapter 3) Agriculture (Chapter 4) Industries - Chapter 5 Human Resources (Chapter 6)
In the NCERT Solutions for Class 8 Geography Chapter 3, how many questions have been answered?
There are 17 questions in the NCERT Solutions for Class 8 Geography Chapter 3. There are five short-answer questions, four multiple-choice questions, four give-reasons questions, and four questions about distinguishing between two terms. On INFINITY LEARN, students can obtain well-explained and clear answers to all of these queries. NCERT Solutions for Class 8 Geography Chapter 3 are available for free download in PDF format.
Is NCERT Class 8 Geography Chapter 3 simple?
The geography syllabus for Class 8 offers extremely simple concepts that kids can understand. The origins of various resources and their processes are discussed in Chapter 3 - Resources and Development. Students can easily score in this chapter if they understand the basic definitions and recall the methods. Students can consult NCERT Solutions for Class 8 Social Science - Resources and Development Chapter-3 if they are having trouble answering any NCERT questions.
