CBSE Class 10 Social Science NCERT Solutions: Minerals and Energy Resources

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This chapter delves into the crucial topic of Minerals and Energy Resources for CBSE Class 10 Social Science. It covers the formation, types, and distribution of various minerals, including ferrous and non-ferrous types, and their significance in India. The solutions also explore conventional and non-conventional energy sources, highlighting their importance and usage. Students will learn about the geological processes involved in mineral formation, such as decomposition of rocks and deposition in rock strata. The chapter emphasizes the role of minerals and energy in economic development and provides insights into India's mineral wealth and energy landscape. These NCERT Solutions are designed to help students grasp complex concepts, understand the geographical distribution of resources, and prepare effectively for their examinations by offering clear explanations and structured answers.

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Quick info

BoardCBSE
ClassClass 10
SubjectSocial Science
Session2026
LanguageEnglish
TypeNCERT Solutions
ChapterChapter 18

Chapter summary

Chapter 18 of the CBSE Class 10 Social Science curriculum focuses on Minerals and Energy Resources. This section provides detailed explanations and answers to questions related to the formation, classification (ferrous and non-ferrous), and distribution of various minerals found in India. It also covers conventional and non-conventional energy sources, their importance, and their role in national development. The solutions aim to clarify the geological processes behind mineral occurrence and the significance of these resources for economic growth.

Learning outcomes

  • Understand the formation processes of different minerals.
  • Differentiate between ferrous and non-ferrous minerals.
  • Identify leading producers of key minerals in India.
  • Distinguish between conventional and non-conventional energy sources.
  • Recognize the importance of minerals and energy resources for economic development.

Topics covered

Paper topics

  • Minerals and Energy Resources
  • Mineral Formation
  • Ferrous Minerals
  • Non-ferrous Minerals
  • Bauxite
  • Mica
  • Sedimentary Rocks and Minerals
  • Monazite Sand
  • Thorium
  • Conventional Energy Sources
  • Non-conventional Energy Sources
  • Mineral Distribution in India

Important topics

  • Ferrous vs. Non-ferrous Minerals
  • Formation of Minerals
  • Leading Mineral Producers in India
  • Conventional vs. Non-conventional Energy
  • Significance of Minerals and Energy Resources

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Questions and Solutions

Q.1A

Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered materials?
  1. Coal
  2. Bauxite
  3. Gold
  4. Zinc
Solution: The correct option is (B) Bauxite. Bauxite is an ore that forms when rocks undergo decomposition. This process leaves behind a residual mass of weathered materials, from which Aluminium is extracted. The soluble components of the original rocks are washed away, leaving the insoluble Bauxite ore behind.

Q.1B

Koderma, in Jharkhand is the leading producer of which one of the following minerals?
  1. Bauxite
  2. Mica
  3. Iron ore
  4. Copper
Solution: The correct option is (B) Mica. Koderma, situated in the Hazaribagh belt of Jharkhand, is recognized as the foremost producer of Mica in India. Jharkhand state, in general, possesses significant mineral wealth.

Q.1C

Minerals are deposited and accumulated in the strata of which of the following rocks?
  1. Sedimentary rocks
  2. Metamorphic rocks
  3. Igneous rocks
  4. None of these
Solution: The correct option is (A) Sedimentary rocks. Minerals are frequently found in layers or strata within sedimentary rocks. This accumulation occurs when minerals are exposed to prolonged periods of high heat and pressure, causing them to form in horizontal layers. Examples of minerals formed this way include coal, iron ore, gypsum, and potash salt.

Q.1D

Which one of the following minerals is contained in the Monazite sand?
  1. Oil
  2. Uranium
  3. Thorium
  4. Coal
Solution: The correct option is (C) Thorium. Monazite sand is a significant source ore for Thorium. The presence of Thorium is what makes Monazite radioactive.

Q.2A (i)

Distinguish between ferrous and non-ferrous minerals in not more than 30 words.
Solution: Ferrous minerals contain iron, such as iron ore and manganese. Non-ferrous minerals do not contain iron, but may contain other metals like copper, bauxite, or gold. This distinction is based on their chemical composition regarding iron content.

Q.2A (ii)

Distinguish between conventional and non-conventional sources of energy in not more than 30 words.
Solution: Conventional sources of energy, like coal and petroleum, are finite and have been used for a long time. Non-conventional sources, such as solar and wind energy, are renewable and generally considered more environmentally friendly, with newer technologies for their utilization.

Common mistakes

  • Confusing the types of rocks in which minerals are found.
  • Misidentifying the primary mineral produced in specific regions.
  • Difficulty in distinguishing between conventional and non-conventional energy sources.
  • Not clearly articulating the formation process of minerals like bauxite.

Revision tips

  • Create a map of India and mark the locations of major mineral deposits and their leading producers.
  • Make a table comparing ferrous and non-ferrous minerals, listing examples and properties.
  • Prepare a similar table for conventional and non-conventional energy sources, noting advantages and disadvantages.
  • Review the geological processes mentioned for mineral formation, such as decomposition and deposition.
  • Focus on understanding the significance of minerals and energy for India's economy.

Practice MCQs

Q1. Which mineral is formed from the residual mass after the decomposition of rocks?

Q2. Koderma, located in Jharkhand, is a major producer of which mineral?

Q3. Minerals are typically found deposited in layers within which type of rocks?

Q4. Monazite sand is a primary source for which radioactive element?

Q5. Which of the following is an example of a ferrous mineral?

Frequently asked questions

What is the main focus of Chapter 18, Minerals and Energy Resources for Class 10 Social Science?

This chapter focuses on the formation, types, distribution, and importance of minerals and energy resources in India, including both conventional and non-conventional sources.

How are minerals formed according to the NCERT Solutions?

Minerals are formed through processes like the decomposition of rocks, leaving residual materials (e.g., Bauxite), or deposited and accumulated in the strata of sedimentary rocks (e.g., coal, iron ore).

What is the difference between ferrous and non-ferrous minerals?

Ferrous minerals contain iron, while non-ferrous minerals do not contain iron. Examples include iron ore and manganese (ferrous) and copper, bauxite, and gold (non-ferrous).

Which mineral is Koderma in Jharkhand known for producing?

Koderma in Jharkhand is the leading producer of Mica.

What is Monazite sand primarily used for?

Monazite sand is an important ore for Thorium, which makes it radioactive.

How do these NCERT Solutions help in exam preparation?

These solutions provide clear, concise, and accurate answers to the chapter's questions, helping students understand key concepts, revise important facts, and practice distinguishing between different types of resources.

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