# Environment and Sustainable Development Notes | SwaVid

Environment and Sustainable Development, NCERT Class 12 Economics: notes with key ideas, definitions, common mistakes and 3 quick checks with worked answers.

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# Environment and Sustainable Development

## Definitions, formats and formulas

## Key ideas

## Common mistakes

## Quick checks

## Keep going

## Questions parents ask

## Class 12 Economics on SwaVid

### Functions of the environment

### Carrying capacity and environmental crisis

### State of India's environment

### Concept of sustainable development

### Strategies for sustainable development

### Related chapter

### Related chapter

### Related chapter

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SwaVid › CBSE › Class 12 › Economics › Environment and Sustainable Development

Notes written by SwaVid from the NCERT textbook.

Class 12 Economics, Chapter 7. Key ideas, definitions and common mistakes.

CBSE does not print marks for a single chapter.

Short answer. This chapter examines the functions of the environment, the nature of environmental crises, and the challenges facing India's natural resources. It explains the concept of sustainable development and presents eco-friendly strategies to preserve resources for future generations.

Source: NCERT Indian Economic Development (Reprint 2026-27) , Chapter 7, Environment and Sustainable Development

The environment supplies renewable and non-renewable resources, assimilates waste, sustains life by providing genetic and biodiversity, and offers aesthetic services. These functions operate smoothly as long as resource extraction remains within the carrying capacity.

Carrying capacity implies that resource extraction stays below the rate of resource regeneration and waste generation remains within the absorption capacity. When these thresholds are breached, environmental degradation and crisis set in, imposing high economic and health costs.

India faces a dichotomy of environmental challenges: poverty-induced degradation such as deforestation and fuel wood gathering, alongside affluence-induced degradation from industrial pollution and vehicular emissions. Priority issues include land degradation, air pollution, biodiversity loss, and management of freshwater resources.

Sustainable development meets the needs of the present generation without compromising the ability of future generations to meet their own needs. It emphasizes intergenerational equity, preserving natural capital, and keeping human impacts within ecological limits.

Sustainable strategies include switching to non-conventional energy sources like solar and wind power, using cleaner fuels like LPG and Gobar gas in rural areas and CNG in urban transport. They also encompass traditional knowledge, organic farming, mini-hydel plants, and bio-pest control.

Try each question first. Then tap it to see the answer.

Rate of extraction = 620 cubic metres per year

Rate of regeneration = 500 cubic metres per year

Condition for sustainability: Extraction ≤ Regeneration

Excess extraction = 620 - 500 = 120 cubic metres

Violates sustainability condition by 120 cubic metres per year

Assimilative capacity = 40 tonnes per month

Waste discharged = 55 tonnes per month

Excess discharge over assimilative capacity = 55 - 40 = 15 tonnes

Yes, carrying capacity is breached by 15 tonnes per month

Identify resources that replenish naturally: solar energy, timber

Identify resources with fixed geological reserves: crude oil, iron ore

Renewable: solar energy, timber; Non-renewable: crude oil, iron ore

Rural Development .

Human Capital Formation in India .

Liberalisation, Privatisation and Globalisation: An Appraisal .

The 13 chapters of Class 12 Economics .

CBSE does not give marks to one chapter. It prints marks for units or parts, and the chapter list page shows them all.

No. They are written by SwaVid from the NCERT textbook. The CBSE curriculum is the reference for what is assessed.

This is the last chapter in the NCERT books for Class 12 Economics.

SwaVid is an AI tutor for Indian students in Classes 6 to 12. It finds the earlier ideas a child missed, then teaches today’s chapter. Start free to see how it works.

- Ch 7 NCERT book
- 80 marks, theory paper
- 3 quick checks
- Confusing absorptive capacity with carrying capacity . Remember that carrying capacity is the broader concept covering both resource regeneration and waste absorption, while absorptive capacity refers only to the environment's ability to neutralize waste.
- Assuming all natural resources are renewable if given enough time . Categorize fossil fuels and minerals strictly as non-renewable because their formation takes millions of years, making their supply fixed within human planning horizons.
- Treating economic growth and sustainable development as identical concepts . Economic growth measures expansion of real output, whereas sustainable development requires that such growth does not deplete natural capital or harm the welfare of future generations.

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