CBSE Class 10 · Social Science · board exam 2027
Chapter 1: Resources and Development — notes
The chapter’s 7 parts in the book’s order — the first idea of each and the points Medha Ma’am writes on the board — and the summary at the end. The full lesson and a check question for each part are in the app.
1. What is a Resource?
Okay, so, let's start with a simple question.
- • Resource = technologically accessible + economically feasible + culturally acceptable
- • Resources are NOT free gifts of nature
- • Nature + Technology + Institutions = interactive relationship
- • Classification:
- • (a) Origin – biotic, abiotic
- • (b) Exhaustibility – renewable, non-renewable
- • (c) Ownership – individual, community, national, international
- • (d) Development status – potential, developed stock, reserves
2. Problems from Misuse and Resource Planning
Okay, so people once thought resources were free gifts of nature.
- • Problems from indiscriminate use:
- • - Depletion of resources for greed of a few
- • - Accumulation in few hands → haves vs have-nots
- • - Global crises: global warming, ozone depletion, pollution, land degradation
- • Resource Planning in India – 3 steps:
- • 1. Identification & inventory (survey, mapping, estimation)
- • 2. Planning structure with technology, skill, institutions
- • 3. Matching with national development plans
3. Sustainable Development
Okay, so you've heard that development shouldn't harm the future.
- • Sustainable development: development without damaging environment,
- • present needs should not harm future generations' needs
- • Rio Earth Summit – June 1992, Brazil
- • Agenda 21 – signed 1992, global sustainable development agenda
- • Gandhiji: 'enough for everybody's need, not for anybody's greed'
- • Club of Rome 1968 → Schumacher 'Small is Beautiful' 1974 → Brundtland Report 1987
4. Land as a Resource and Land Utilisation
You live on land, perform economic activities on it, and use it in many ways, so land is a natural resource of utmost importance, but it is finite, so it needs careful planning.
- • Land: finite resource, used for agriculture, forests, pastures, settlements
- • India's geographical area = 3.28 million sq km (data for 93%)
- • Plain = 43%, Mountains = 30%, Plateau = 27%
- • Land use categories: Forests; Land not for cultivation; Other uncultivated land; Fallow land; Net Sown Area
- • Net Sown Area = land actually sown & harvested
- • Gross Cropped Area = Net Sown Area + area sown more than once
- • NSA: Punjab/Haryana >80%; Arunachal/Mizoram/Manipur/A&N <10%
5. Land Degradation and Conservation
See, land gives us almost everything we need.
- • 95% of basic needs (food, shelter, clothing) come from land
- • Causes of land degradation:
- • - Deforestation + mining → Jharkhand, Chhattisgarh, MP, Odisha
- • - Overgrazing → Gujarat, Rajasthan, MP, Maharashtra
- • - Over-irrigation → Punjab, Haryana, western UP (waterlogging, salinity)
- • - Mineral dust & industrial effluents
- • Conservation: afforestation, grazing control, shelter belts, waste land management
6. Soil as a Resource and Classification of Soils
Okay, so let's talk about soil.
- • Soil = most important natural resource, living system
- • Factors: relief, parent rock, climate, vegetation, time
- • Types of soil:
- • - Alluvial – northern plains, fertile, sugarcane/wheat/paddy
- • - Black (regur) – Deccan trap, cotton
- • - Red & Yellow – low rainfall Deccan areas
- • - Laterite – heavy leaching, tea & coffee (after conservation)
- • - Arid – sandy, saline, cultivable after irrigation (W. Rajasthan)
- • - Forest – hilly areas, loamy/silty in valleys
7. Soil Erosion and Soil Conservation
Okay, so — soil forms, and soil erodes, all the time, and normally these balance each other.
- • Soil erosion = denudation of soil cover + washing away
- • Causes: deforestation, overgrazing, mining, construction, wind, water, glacier
- • Gully erosion → 'bad land' (called ravines in Chambal basin)
- • Sheet erosion – water flows as sheet, washes top soil
- • Wind erosion – wind blows loose soil
- • Conservation methods:
- • Contour ploughing, Terrace cultivation, Strip cropping, Shelter belts
Summary
Okay, so, let's bring this whole chapter together. Resources are not just free gifts of nature — they become resources through human activity. We looked at them by origin, by how long they last, by who owns them, and by how developed they are. Then we saw what happens when resources are used carelessly — depletion, inequality, and ecological crises. That's why resource planning and sustainable development matter so much. Remember the Rio Earth Summit, and Agenda 21? And thinkers like Gandhiji, and the Brundtland Commission, all pointed to the same idea — use resources, but don't finish them off. After that, we studied land. Land is finite, it's used in many ways across India, and it degrades through deforestation, overgrazing, and over-irrigation — but it can also be conserved. Finally, we looked at soil as a living resource. Can you recall the major soil types — alluvial, black, red and yellow, laterite, arid, and forest soil? And we saw how soil erosion happens, and how contour ploughing, terracing, strip cropping, and shelter belts help check it. So, tell me — of everything we covered, which part felt the most new to you?
Ask Medha · Medha Ma’am — CBSE Class 10 Social Science, Chapter 1. Written from the textbook, checked twice.
Questions parents and students ask
- How do I get the "Resources and Development" notes as a PDF?
- Press "Save as PDF" — the phone’s print sheet opens; choose "Save as PDF" there. The PDF holds the notes only.
- Where are these notes written from?
- From the chapter’s own textbook text, part by part, in the book’s own terms; a second, independent model then checked every part against the book. The full lesson, a check question for each part and the practice are in the Ask Medha app.
The same preparation, with Medha Ma’am — on your phone
Every question of every chapter with its model answer, practice questions in the board’s own shapes, 45 minutes of class a day, written answers marked, a test every Sunday and a WhatsApp report to parents.
Medha Ma’am is an AI teacher, not a live tutor. Every answer is checked twice; a person takes responsibility.