Jayant Narlikar

The Ailing Planet: The Green Movement's Role Class 11 Notes for Exam Success

By ConceptScroll Team · Published on 18 June 2026 · 4 min read

The Ailing Planet: the Green Movement's Role class 11 notes explain how human actions harm the environment and highlight the green movement's efforts to protect Earth. This guide helps Class 11 students understand the chapter clearly for their NCERT English exams.

Understanding The Ailing Planet: An Overview

The chapter "The Ailing Planet: the Green Movement's Role" introduces students to the critical environmental problems caused by human activities. It explains how rapid industrialisation, deforestation, and pollution have led to the planet's deterioration. The green movement emerges as a response to these issues, promoting awareness and sustainable living.

Key points include:

  • The planet is 'ailing' due to human greed and carelessness.
  • Environmental degradation threatens all forms of life.
  • The green movement advocates for protecting natural resources.

This section sets the foundation for understanding why environmental protection is crucial for future generations.

Causes of Environmental Degradation Explained

The chapter details several causes behind the planet's declining health:

  • Industrialisation: Factories emit pollutants into air and water.
  • Deforestation: Cutting down trees reduces oxygen and harms wildlife.
  • Urbanisation: Expanding cities increase waste and reduce green cover.
  • Excessive Resource Use: Overconsumption leads to resource depletion.

These causes are interconnected and worsen the planet's condition. The NCERT textbook encourages students to understand these causes rather than memorize them, as this helps in applying knowledge practically.

Want to test yourself on The Ailing Planet: the Green Movement's Role? Try our free quiz →

The Green Movement: Goals and Achievements

The green movement aims to restore and protect the environment through:

  • Raising Awareness: Educating people about environmental issues.
  • Promoting Sustainable Development: Balancing human needs with nature.
  • Legal and Policy Actions: Supporting laws that protect forests, wildlife, and air quality.
  • Community Participation: Encouraging local involvement in conservation.

Achievements of the green movement include reduced pollution levels in some areas and increased global attention on climate change. The movement inspires students to think critically about their role in environmental protection.

Comparing Environmental Impact: Past vs Present

Understanding how environmental impact has changed over time helps highlight the urgency of the green movement. Below is a comparison:

AspectPast (Before Industrialisation)Present (Post-Industrialisation)
Air QualityClean, natural airPolluted with smoke and gases
Forest CoverDense and widespreadReduced drastically
Wildlife PopulationAbundantMany species endangered
Waste GenerationMinimalExcessive, causing landfills

This comparison shows why the green movement's role is vital in reversing damage and promoting a healthier planet.

Key Terms and Concepts to Remember

For Class 11 students, mastering key terms enhances understanding and exam performance. Important concepts include:

  • Sustainable Development: Development that meets present needs without harming future generations.
  • Pollution: Contamination of air, water, or soil by harmful substances.
  • Deforestation: Removal of forests leading to ecological imbalance.
  • Conservation: Protection and careful management of natural resources.

Memorizing definitions is helpful, but applying these concepts in answers is crucial for scoring well.

Tips for Answering NCERT Exercises and Exam Questions

To excel in exams, students should:

  • Read questions carefully and answer precisely.
  • Use examples from the chapter to support answers.
  • Practice writing short and long answers from NCERT exercises.
  • Revise diagrams or illustrations related to environmental issues.

Worked Example:

Q: What is the main cause of the planet's ailing condition according to the chapter?

A: The main cause is human greed and exploitation of natural resources, leading to pollution and environmental degradation.

Following these tips ensures clarity and confidence during exams.

Frequently asked questions

What is the main message of The Ailing Planet chapter?

The chapter highlights how human activities harm the environment and stresses the need for sustainable living.

Why is the green movement important for Class 11 students?

It teaches students about environmental protection and their role in conserving nature for the future.

How can students prepare effectively for this NCERT chapter?

By understanding key concepts, practicing exercises, and reviewing examples and diagrams.

What are the causes of environmental degradation mentioned in the chapter?

Industrialisation, deforestation, urbanisation, and excessive resource use are the main causes.

How does the green movement promote sustainable development?

Through awareness, legal actions, and encouraging community participation to protect nature.

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