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CBSE • Class X • Social Science • Ch 6

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Resources and Development

In Class 10 Social Science, "Resources and Development" provides an authoritative, curriculum-verified master resource aligned with the 2026–27 NCERT syllabus.

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🌍 Have You Ever Wondered?

If planet Earth provides enough to satisfy every human being's need, why are soils eroding, water tables plunging, and global temperatures climbing? R...

If planet Earth provides enough to satisfy every human being's need, why are soils eroding, water tables plunging, and global temperatures climbing? Resource planning reconciles ecological sustainability with human progress.

Why This Chapter Matters

In Class 10 Social Science, "Resources and Development" provides an authoritative, curriculum-verified master resource aligned with the 2026–27 NCERT syllabus.

Before You Begin (Prerequisites)

Natural resources from Class 8.
Types of resources (renewable vs non-renewable).
Soil profiles.

What You Will Learn (Core Objectives)

Classify resources on the basis of Origin, Exhaustibility, Ownership, and Status of Development.
Explain Sustainable Development and the Rio de Janeiro Earth Summit (1992, Agenda 21).
Analyze the three stages of Resource Planning in India.
Evaluate Land Degradation causes (mining, over-irrigation, overgrazing) and conservation measures.
Classify major Indian Soil types: Alluvial, Black (Regur), Red and Yellow, Laterite, Arid, and Forest soils.

Chapter Roadmap & Progression

1 1. Classification & Sustainable Dev...

2 2. Land Degradation & Conservation

3 3. Indian Soils Panorama

Complete Concept Guide (100% Curriculum Coverage)

1. Classification & Sustainable Development

Resources are classified by:
• Origin: Biotic (flora, fauna) vs Abiotic (rocks, metals).
• Exhaustibility: Renewable (solar, wind) vs Non-Renewable (coal, petroleum).
• Ownership: Individual, Community, National (territorial waters up to $12\text{ nautical miles}$ / $22.2\text{ km}$ from coast), and International (Exclusive Economic Zone beyond $200\text{ nautical miles}$).
The 1992 Rio Earth Summit adopted Agenda 21 to achieve global sustainable development without compromising future generations.

2. Land Degradation & Conservation

India has $130\text{ million hectares}$ of degraded land caused by:
• Overgrazing: Gujarat, Rajasthan, Madhya Pradesh.
• Over-irrigation: Punjab, Haryana, Western UP (waterlogging leading to soil salinity and alkalinity).
• Mining scars: Jharkhand, Chhattisgarh, Odisha.
Conservation remedies include shelter-belt afforestation, sand dune stabilization, and controlled grazing.

3. Indian Soils Panorama

Alluvial Soil: Formed by Indus-Ganga-Brahmaputra silt; rich in potash and lime; Khadar (new fertile alluvium) vs Bhangar (old coarse alluvium).
Black Soil (Regur): Formed from volcanic basalt lava in Deccan plateau; rich in clay, holds moisture, ideal for cotton cultivation.
Laterite Soil: Formed under intense tropical leaching with high rainfall and temperature; acidic, ideal for tea, coffee, and cashew nuts with fertilizers.

Visual Learning & Conceptual Map

Resources and Development Master Matrix

Conceptual framework, core mechanisms, and analytical relationships

Academic Architecture

1. Classification & Sustainable Development • 2. Land Degradation & Conservation

Chapter Summary & 10 Key Takeaways

Takeaway 1

Exclusive Economic Zone (EEZ): Oceanic zone up to 200 nautical miles for exclusive resource utilization.

Takeaway 2

Agenda 21: Blueprint for global sustainable development adopted at 1992 Rio Earth Summit.

Takeaway 3

Khadar vs Bhangar: New fertile flood-plain alluvium vs older calcareous alluvium terrace.

Takeaway 4

Regur Soil: Black cotton soil with self-ploughing fissures upon drying.

Takeaway 5

Leaching: Process of washing away topsoil nutrients by heavy rainfall in Laterite soils.

Check Your Understanding (Diagnostic Practice Questions)

Diagnostic questions testing core conceptual clarity. Answers are hidden initially — solve each problem first, then click to reveal the step-by-step verified solution.

What is Sustainable Development and what was the main outcome of the 1992 Rio Earth Summit?

Reveal Answer & Explanation

Answer: Sustainable development means economic development conducted without depleting natural resources or harming the environment for future generations. The 1992 Rio Summit produced Agenda 21, the Rio Declaration on Environment and Development, and principles of global sustainable growth.
Development without environmental damage; Agenda 21.

Differentiate between Khadar and Bhangar alluvial soils.

Reveal Answer & Explanation

Answer: Khadar is new alluvial soil deposited by annual floods, finer in texture, and more fertile; Bhangar is older alluvial soil deposited on river terraces, coarser, and contains calcareous kankar nodules.
New flood-plain soil vs older coarse terrace soil.

What are the characteristics of Black Soil and why is it called Black Cotton Soil?

Reveal Answer & Explanation

Answer: Black soil (Regur) is derived from Deccan lava basalt, extremely fine-textured and clayey, has high moisture-retention capacity, and develops deep cracks in summer. It is called cotton soil because it provides ideal conditions for growing cotton.
Deccan volcanic basalt clay, moisture-rich, ideal for cotton.

State three major human causes of land degradation in different regions of India.

Reveal Answer & Explanation

Answer: Deforestation and open-cast mining in Jharkhand/Odisha, excessive overgrazing in Rajasthan/Gujarat, and over-irrigation leading to waterlogging and soil salinity in Punjab/Haryana.
Mining, overgrazing, and excessive irrigation.

Explain the three sequential stages of Resource Planning in India.

Reveal Answer & Explanation

Answer: (1) Identification and inventory of resources across regions through surveying and mapping; (2) Evolving a planning structure endowed with appropriate technology, skill, and institutional setup; (3) Matching resource plans with national development plans.
Surveying/mapping, institutional planning, national matching.

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