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Chapter 1: Natural Resources and Their Use Quick revision notes Class 8th Social Science (Exploring Society: India and Beyond Part-I)

Class 8 · Social Science (Exploring Society India and Beyond Part) · Chapter 1 : Natural Resources and Their Use · All Board · All Medium · 21 views

Ye material inke liye bhi hai: All Board BIHAR BOARD CBSE CHHATTISGARH BOARD JHARKHAND BOARD MP BOARD NIOS RAJASTHAN BOARD UP BOARD All Medium ENGLISH HINDI
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Dudhsagar Waterfall Goa Chapter 1
📘 Grade 8 | Exploring Society

🌿 Natural Resources
and Their Use

India and the World: Land and the People • Chapter 1

We must move toward a regenerative economy — one that operates in harmony with nature, repurposing used resources, minimizing waste, and replenishing depleted resources.
— Christiana Figueres & Tom Rivett-Carnac, The Future We Choose
🌱

When Does Nature Become a Resource?

🌿 What is "Nature"?

Nature = all living & non-living things in our environment NOT created by humans. When humans start using them for their needs → they become Resources.

Microhydel plant Himachal Pradesh Offshore oil rig petroleum

⬆️ Fig 1.2: Microhydel plant — flowing water converted to electricity (left)  •  Fig 1.3: Offshore oil rig extracts petroleum from under the sea (right)

📌 3 Conditions for Something to Be a "Resource"

1) Technologically Accessible — we must have the tech to extract it
2) Economically Feasible — extraction cost must be worth it
3) Culturally Acceptable — e.g., cutting trees in sacred groves is NOT acceptable

📌
Example 💡 — Trees exist on their own. But when we cut them to make furniture → they become a resource! Petroleum deep under ocean = NOT a resource if we can't access it yet.
🌍 Examples of Natural Resources
  • Obvious ones: Water, Air, Soil
  • Less obvious: Coal, Petroleum, Precious Stones
  • Also: Metal ores, Timber, Natural gas — all formed over millions of years!
✦ ✦ ✦
📊

Categories of Natural Resources

🗂️ Why Categorise?

Categorisation helps us communicate effectively. One word says it all — just like "living" vs "non-living"!

💧 Essential for Life

Air, Water, Food/Soil. Life cannot exist without these. We cannot make them!

🪵 For Materials

Wood, marble, gold, coal. India's diversity = wide variety!

⚡ For Energy

Coal, water, petroleum, gas, sunlight, wind. Energy = cornerstone of modern life!

Gentle ploughing retains soil moisture Honey from beehive

⬆️ Fig 1.4: Gentle ploughing minimises soil disturbance & retains moisture (left)  •  Fig 1.5: Honey — one of Nature's gifts (right)

✦ ✦ ✦
♻️

Renewable vs Non-Renewable

🌊 Nature's Big Principle — Restore & Regenerate!

Nature works in restoration & regeneration cycles — no waste! A cut heals. Forests recover after wildfire. A fallen tree decomposes → enriches soil → new trees grow. 🌀

🟢 Renewable Resources🔴 Non-Renewable Resources
Replenished naturally over timeCannot be replenished at rate we use them
Solar, Wind, Water, Forest timberCoal, Petroleum, Iron ore, Copper, Gold
Stay renewable ONLY if not over-exploitedOnce used — effectively gone forever
India's rivers fed by rain & glaciersIndia's coal reserves may last ~50 more years
River water renewable resource Timber from forest renewable

⬆️ Fig 1.7: River water — renewable as long as glaciers & forests exist (left)  •  Fig 1.8: Timber is renewable only if forests are allowed to regenerate (right)

⚠️
Big Warning!
Renewable can become non-renewable if overused! Fossil fuel burning + deforestation are melting Himalayan glaciers faster than rain can refill them → water security threat for millions!
🐟 Traditional Wisdom: Fishing Seasons

Traditional communities stopped fishing during spawning season to let fish recover. Commercialization led to over-fishing. Tuna is dangerously declining — it keeps ocean ecosystems in balance!

✦ ✦ ✦
🗺️

Distribution of Natural Resources

⚡ Uneven Distribution → Big Consequences!
  • Resources are NOT evenly distributed — within countries or globally
  • Shapes human settlements, trade, international relations & wars!
Distribution of minerals in India map

🗺️ Fig 1.11: Distribution of important minerals in India — Coal, Oil & Iron Ore are concentrated in specific regions

✅ Benefits
  • Industries near resources = jobs
  • Townships & economic growth
  • Better quality of life
❌ Costs
  • People displaced from homes
  • Sacred places threatened
  • Environmental damage
Mettur dam Tamil Nadu Kaveri river

⬆️ Fig 1.13: Mettur Dam, Tamil Nadu — built on the Kaveri river, shared by multiple states

🌊
Kaveri River Dispute!
Nature ignores political boundaries! Kaveri water shared among Karnataka, Tamil Nadu, Kerala & Puducherry. Careful negotiations were needed. International disputes are even harder!
✦ ✦ ✦
💰

The Paradox of Plenty

🧠 Key Concept!

Natural Resource Curse / Paradox of Plenty =
Having lots of resources ≠ rich country! Many resource-rich regions have slower growth because they fail to develop industries that convert raw resources into higher-value products.

🇮🇳 How India Avoids This Curse

India invests in building value-adding industries. Formula: Human knowledge + Good governance + Strategic planning = Lasting benefits (not temporary windfalls).

✦ ✦ ✦
🌍

Responsible Use & Stewardship

⚠️ Three Big Threats From Irresponsible Use
  • Pollution — air, water, soil contaminated
  • Biodiversity Loss — decline in variety of life on Earth
  • Climate Change — accelerating at alarming pace
Industrial waste discharged into rivers

⬆️ Fig 1.10: Industrial waste discharged into rivers — disrupting Nature's regeneration cycle

🌊 Groundwater Crisis
  • Extraction rate > replenishment
  • Many cities running out
  • Fix: water harvesting, pond rejuvenation, reuse
🌾 Soil Degradation
  • Chemicals damage soil health
  • Traditional fix: cow dung, mulching, multi-cropping
  • Need to replenish & rejuvenate
🏗️ Cement Problem & Better Alternatives

Cement = one of the most polluting industries. Fine dust damages lungs. Better options: traditional stone & mud, plant-based materials, recycled waste — combined with modern tech.

Jaisalmer fort 12th century mud sandstone Auroville mud building UNESCO

Fig 1.18: Jaisalmer fort — 12th century mud + sandstone still standing!  •  Fig 1.19: Auroville Earth Institute modern mud building (UNESCO)

🌿 Vṛikṣhāyurveda — Ancient Indian Wisdom

Ancient Indian botanical science (~10th century CE). Covers:

  • Specific plants for different soil types
  • Seed collection, preservation & pre-planting treatments
  • Irrigation techniques by season & plant species
  • Natural pest management with companion planting
  • Crop rotation to maintain soil health

✦ ✦ ✦
📖

Case Studies

📍 Case Study 1: Punjab Groundwater Crisis

Extraction of groundwater pipe pump Wet paddy fields Punjab

⬆️ Fig 1.15: Extraction of groundwater (left)  •  Fig 1.16: Wet paddy fields needing heavy irrigation (right)

  • Punjab = Green Revolution state — made India self-sufficient in food
  • 1960s: Shifted to high-yielding wheat & paddy — needed far more water
  • Free electricity → massive over-pumping of groundwater
  • Chemical pesticides + fertilizers dissolved into groundwater → serious health hazards
  • ~80% of Punjab area = "over-exploited"
  • Water table now 30+ metres deep in many areas!
Depth to water level map Punjab 2022

🗺️ Fig 1.17: Depth to Water Level Map of Punjab (June 2022) — darker = deeper water table (worse situation)

💡
Lesson: Short-term food security achieved BUT long-term groundwater sustainability sacrificed. Nature pushed beyond regenerative capacity!
🌿 Case Study 2: Sikkim Organic Farming Success

Organic farming Sikkim

⬆️ Fig 1.20: Organic farming in Sikkim — a whole-state transformation!

  • Pema's family: declining yields + debt from chemicals → switched to organic
  • Used compost, neem & garlic for pests, multi-cropping year-round
  • First 5 years: yields dropped (soil recovering from chemical damage)
  • 2016: Sikkim = India's first 100% Organic State! 🏆
  • Biodiversity flourished — insects & birds returned to farms
  • Tourism increased; farmers' incomes grew 20% on average!
  • Sikkim is now a global model for sustainable agriculture
☀️ India's Solar Energy Leadership
Bhadla Solar Park Rajasthan satellite view

🌞 Fig 1.21: Bhadla Solar Park, Rajasthan — one of world's largest; powers ~15% of Rajasthan's needs!

  • International Solar Alliance (ISA) — India & France launched it in 2015
  • Coalition of sunshine-rich countries harnessing solar energy together
  • India channeled billions of dollars into solar projects for developing nations
  • Goal: switch from fossil fuels to renewables as fast as possible
Solar farm near Raichur Karnataka

⬆️ Fig 1.22: Solar farm near Raichur, Karnataka — India's renewable revolution in action

✦ ✦ ✦
📝

Quick Summary

⭐ Key Points to Remember
  • Natural Resource = from Nature, valuable to humans, must be accessible + feasible + culturally OK
  • 3 Uses: Life (air/water/soil) | Materials (wood/marble) | Energy (coal/solar)
  • Renewable = replenish naturally — but ONLY if we don't over-exploit
  • Non-renewable = coal, petroleum, minerals — use wisely!
  • Resource Curse = more resources ≠ prosperity without value-adding industries
  • Irresponsible use → Pollution + Biodiversity loss + Climate change
  • We must be stewards — restore, regenerate, sustain for future generations
🧠 Mind Map
NATURAL RESOURCES
↙️        ↓        ↘️
By Use    By Type    Key Issues
Life|Materials|Energy    Renewable/Non-renewable    Distribution|Overuse|Stewardship
The Bhagavad Gītā refers to lokasangraha — the idea that everyone must transcend personal desires and act for the wellbeing of all. Has the time come for us to consider this seriously in our relationship with Nature?
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