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Revision Notes

Environment and Sustainable Development

CBSE · Class 11 · Economics

Quick revision notes for Environment and Sustainable Development — CBSE Class 11 Economics. Key concepts, formulas, and definitions for last-minute revision.

104 questions80 flashcards5 concepts

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Key Topics to Revise

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1. Environment: Meaning and Main Elements

  • Environment is defined as the total planetary inheritance and the totality of all resources.
  • It includes biotic factors and abiotic factors that influence each other.
  • Biotic elements include birds, animals, plants, forests, and fisheries.
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2. Functions of the Environment

  • The environment performs four vital functions.
  • It supplies resources, including renewable and non-renewable resources.
  • It assimilates waste.
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3. Environmental Crisis and Why It Happens

  • Earlier, pollution remained within the absorptive capacity of the environment because demand was lower than supply.
  • Population growth and industrialisation changed the situation.
  • Now demand for environmental resources and services is greater than supply because of overuse and misuse.
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4. Global Warming and Ozone Depletion

  • Global warming is a gradual increase in the average temperature of the earth's lower atmosphere because of greenhouse gases.
  • It is linked to fossil fuels and deforestation.
  • Carbon dioxide concentration increased by 31 per cent and methane by 149 per cent above pre-industrial levels since 1750.

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Full Notes

Key Concepts

Environment means the total planetary inheritanceBiotic elements include birdsThe environment supplies resourcesRenewable resources are those that canNon

Frequently Asked Questions

What are the important topics in Environment and Sustainable Development for CBSE Class 11 Economics?
Environment and Sustainable Development covers several key topics that are frequently asked in CBSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Environment and Sustainable Development — CBSE Class 11 Economics?
Understand the core concepts first, then work through the 104 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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