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Natural Resources and Their Use – Class 8 Social Science Chapter 1 Notes & NCERT PDF

Class 8Social ScienceChapter 1NCERT book: Exploring Society: India and Beyond - Social Science Class 8

Notes and a simple summary of Chapter 1 of the NCERT Class 8 Social Science book, with the official chapter PDF, flashcards, an MCQ quiz and an AI tutor for your doubts.

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Chapter 1: Natural Resources and Their Use

The Big Questions

  • How do we categorise natural resources?
  • What is the connection between the distribution of natural resources and different aspects of life?
  • What are the implications of unsustainable use or over-exploitation of natural resources?
    • "We must move toward a regenerative economy, an economy that operates in harmony with nature, repurposing used resources, minimizing waste, and replenishing depleted resources." — Christiana Figueres and Tom Rivett-Carnac, The Future We Choose

    Introduction

    This chapter opens Theme A (India and the World: Land and the People). Everything around us — even the plastic button on a shirt — can be traced back to Nature. The chapter asks when a part of Nature becomes a resource, how resources can be grouped, why they are unevenly spread across the Earth, and how we can use them wisely as stewards rather than over-exploiting them.

    Key Concepts

    When does Nature become a resource?

  • Nature is the totality of life and non-life forms in our environment that humans have not created.
  • When humans use these for sustenance or to make new things, they become resources (e.g., a tree becomes a resource when its wood is made into furniture).
  • For something to count as a resource it must be:

    • - technologically accessible (we have the technology to reach it),

    - economically feasible (extraction is not too costly), and

    - culturally acceptable (e.g., cutting trees in sacred groves is not acceptable).

  • In this chapter, 'exploitation' simply means extraction, utilisation and consumption of natural resources.
  • Natural resources = materials and substances that occur in Nature and are valuable to humans.

    • Categories of natural resources

    By use:

  • Resources essential for life — air, water, food (from soil and living things). We cannot make them ourselves.
  • Resources for materials — wood, marble, coal, gold, etc., used to make useful and beautiful objects (a piece of wood can become a chair or a carved statuette).
  • Resources for energy — coal, water, petroleum, natural gas, sunlight, wind.

    • By renewability:

  • Renewable resources — sunshine, rivers fed by rain and melting glaciers, forests, soil. They stay renewable only if the natural rhythm of restoration and regeneration is not disturbed.

    • - Restoration = returning something to its original healthy state (a cut heals; a forest recovers after a wildfire).

    - Regeneration goes beyond restoration — Nature's ability to create new life and conditions for thriving.

    - If we harvest timber faster than forests grow, or pollute rivers with industrial waste, the cycle breaks. Rising temperatures are melting some Himalayan glaciers faster than precipitation can replace them, threatening water security in the plains that depend on this 'water tower'.

  • Non-renewable resources — formed over very long periods and cannot be replenished at the rate we use them: fossil fuels (coal, petroleum) and minerals/metals such as iron, copper and gold. India's coal reserves may last only about another 50 years, so coal must be used judiciously until sustainable options are widespread.

    • Ecosystem functions and ecosystem services

  • A forest naturally filters water, prevents soil erosion and gives animals a habitat — these are ecosystem functions.
  • When humans benefit from them (clean water, protected farmland, pollinated crops), we call them ecosystem services.
  • A mature tree produces about 275 litres of oxygen per day; a human needs about 350 litres every day.

    • Distribution of natural resources and its implications

  • Resources are unevenly distributed across the planet and within countries. This shapes settlements, trade, international relations — and even wars.
  • Industries near resources create jobs and townships, but can also displace local people and threaten sacred places.
  • Nature ignores political boundaries: the sharing of Kaveri water among Karnataka, Tamil Nadu, Kerala and Puducherry needed careful negotiation.
  • Resources combined with human skill created unique products like Wootz steel; trade fuelled large empires in India.

    • The 'Paradox of Plenty'

  • Having plenty of resources does not automatically make a country rich — economists call this the 'natural resource curse'. Often economies fail to build industries that turn resources into higher-value products.
  • India has generally avoided this curse by investing in such industries. Knowledge, good governance and planning decide whether resources become lasting benefits or temporary windfalls.

    • Stewardship: responsible and wise use

    Irresponsible use has led to pollution, biodiversity loss (decline in the variety of life on Earth) and climate change.

    Case: groundwater in Punjab

  • Punjab led the Green Revolution. From the 1960s, farmers shifted to high-yielding wheat and paddy that need more water; free power led to over-pumping.
  • In a large part of Punjab, groundwater is now inaccessible till depths of about 30 metres, and fertiliser and pesticide chemicals have entered it.
  • Almost 80% of Punjab's area is classified as 'over-exploited'. Food security was ensured for the short term, but long-term damage will take time to heal.

    • Case: cement

  • Cement production is one of the most polluting industries (fine dust harms lungs, plant yields, soil and water). The Central Pollution Control Board has guidelines for factories.
  • Alternatives: traditional materials like stone and mud (e.g., earthen buildings of the Auroville Earth Institute, which holds the UNESCO Chair for Earthen Architecture), plant-based and recycled materials.

    • Traditional knowledge: Vṛikṣhāyurveda

  • An ancient Indian science of plant care, formalised in texts such as Surapala's Vṛikṣhāyurveda (around the 10th century CE) — soil-specific planting, seed treatment, irrigation, natural pest management, crop rotation and mixed cropping.

    • Case: Sikkim goes organic

  • Pema's family switched from costly chemicals to compost and neem–garlic pest repellents; after about five years the farm thrived.
  • In 2016 Sikkim became a 100 per cent organic state. Biodiversity returned, tourism increased and farmers' incomes grew by about 20 per cent on average.

    • Renewable energy

  • One of the world's largest solar parks, in Rajasthan, can generate enough electricity for about 15% of Rajasthan's current needs; the Bhadla Solar Park is a symbol of India's solar ambitions.
  • India and France launched the International Solar Alliance in 2015 — a coalition of sunshine-rich countries.

    • Fairness and values

  • Access to basic resources (water, clean air) is often unfair to some sections of society.
  • The Bhagavad Gītā's idea of lokasangraha — acting for the wellbeing of all — reminds us to be stewards of Nature.

    • Think About It / Let's Explore

  • What criteria could we use to categorise natural resources?
  • Identify human actions around you that stop Nature from restoring and regenerating itself. How can the cycle be restored?
  • Research renewable resources in your region and how their status has changed over time.
  • Which non-renewable resources do you use daily, and what renewable substitutes exist?
  • Map two resources across India and discuss the economic activities linked to them.

    • Key Terms

  • Natural resource (प्राकृतिक संसाधन) — something from Nature valuable to humans
  • Renewable resource (नवीकरणीय संसाधन) — can be replenished naturally if managed sustainably
  • Non-renewable resource (अनवीकरणीय संसाधन) — cannot be replenished at the rate we use it
  • Restoration (पुनर्स्थापन) — returning to an original healthy state
  • Regeneration (पुनर्जनन) — creating new life and conditions for thriving
  • Ecosystem services (पारिस्थितिकी तंत्र सेवाएँ) — benefits humans get from Nature's functions
  • Biodiversity loss (जैव विविधता की हानि) — decline in the variety of life
  • Over-exploitation (अति-दोहन) — using a resource faster than it can recover
  • Resource curse / Paradox of plenty (संसाधन अभिशाप) — resource-rich regions that grow slowly
  • Groundwater (भूजल) — water stored below the ground
  • Stewardship (संरक्षकता) — responsible care of resources
  • Lokasangraha (लोकसंग्रह) — acting for the wellbeing of all
  • Vṛikṣhāyurveda (वृक्षायुर्वेद) — ancient Indian science of plant care
  • Arghyam (अर्घ्य) — offering of water as a mark of respect or gratitude

    • Map & Timeline Corner

  • Kaveri river — shared by Karnataka, Tamil Nadu, Kerala and Puducherry (Mettur dam in Tamil Nadu is built on it).
  • Brahmaputra — shared waters across countries.
  • Punjab — groundwater over-exploitation since the 1960s Green Revolution.
  • Sikkim — 100% organic state in 2016.
  • Rajasthan — one of the world's largest solar parks (Bhadla Solar Park is a symbol of India's solar ambitions); Jaisalmer fort, a mud structure from the 12th century.
  • 2015 — India and France launch the International Solar Alliance.

    • Connect to Today

    Turning off running taps, avoiding food waste, choosing public transport, supporting solar power and organic produce are everyday acts of stewardship. Rainwater harvesting and reviving ponds and tanks help recharge groundwater in growing cities.

    Common Mistakes

  • Thinking renewable resources can never run out — they stay renewable only if used within Nature's pace of regeneration.
  • Confusing ecosystem functions (what Nature does) with ecosystem services (how humans benefit).
  • Assuming more resources always mean more wealth — remember the paradox of plenty.
  • Believing anything in Nature is automatically a resource — it must be accessible, affordable to extract and culturally acceptable.

    • Questions and Activities (hints)

  • What can make a renewable resource non-renewable? — over-use faster than regeneration, pollution; suggest limits, reforestation, water harvesting.
  • Name five ecosystem functions — oxygen production, water filtration, preventing soil erosion, habitat, pollination.
  • Compare renewable and non-renewable resources with two examples of sustainable use (forests, groundwater).
  • Look for cultural practices at home that show mindful use (saving water, reusing items, respecting trees).
  • Considerations in production — pollution, waste, local employment, suitability to climate.

    • 💡 Key Learning Points

    • ✓A part of Nature becomes a resource when it is technologically accessible, economically feasible and culturally acceptable to use.
    • ✓Resources can be grouped by use (essential for life, materials, energy) and by renewability (renewable and non-renewable).
    • ✓Renewable resources stay renewable only if Nature's cycle of restoration and regeneration is not disturbed.
    • ✓Resources are unevenly distributed, which shapes settlements, trade, sharing disputes (e.g., Kaveri) and the 'paradox of plenty'.
    • ✓Cases like Punjab's groundwater, cement pollution, Sikkim's organic farming and India's solar push show why stewardship matters.

    👨‍🏫 Teaching Tips

    • →Start with the 'Take a pause' activity: students pick three objects in the classroom and trace each back to its natural source.
    • →Build a class sorting chart (as lists) placing resources under 'essential for life', 'materials' and 'energy', then re-sort them as renewable or non-renewable.
    • →Use the oxygen fact (275 litres per tree vs 350 litres per person) for a quick calculation of how many trees one person 'needs'.
    • →Run a role-play on Kaveri water sharing among four states to show negotiation over a shared resource.
    • →Discuss the Punjab and Sikkim caselets side by side: what went wrong, what was done right, and at what cost.
    • →Assign the 'Let's Explore' mini-research on renewable resources in the local region, ending in a short report.
    • →Link Vṛikṣhāyurveda and lokasangraha to modern sustainability to show continuity of ideas.

    📋 Assessment Questions

    1. Can the student state the three conditions for something to be called a resource?
    2. Can the student distinguish renewable and non-renewable resources with correct examples?
    3. Can the student explain the difference between ecosystem functions and ecosystem services?
    4. Can the student explain the 'paradox of plenty' and how India avoided it?
    5. Can the student describe the causes and effects of groundwater over-exploitation in Punjab?

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    Keep learning

    All chapters in Exploring Society: India and Beyond - Social Science Class 8

    1. 1. Natural Resources and Their Use
    2. 2. Reshaping India’s Political Map
    3. 3. The Rise of the Marathas
    4. 4. The Colonial Era in India
    5. 5. Universal Franchise and India’s Electoral System
    6. 6. The Parliamentary System: Legislature and Executive
    7. 7. Factors of Production