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Syllabus

Triple Planetary Crisis — Syllabus

ICSE · Class 9 · Environmental Science

What Triple Planetary Crisis covers in ICSE Class 9 Environmental Science: 4 topics, for the 2026-27 session. Topics include Triple Planetary Crisis: Core.

58 questions40 flashcards5 concepts

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4 Topics · ICSE Class 9 Environmental Science · 2026-27

Topics in Triple Planetary Crisis

1

1. Triple Planetary Crisis: Core Idea

  • Triple Planetary Crisis refers to three interconnected global environmental challenges: climate change, biodiversity loss, and environmental pollution.
  • UNEP describes the Triple Planetary Crisis as one of the most pressing challenges of our time.
  • These three problems are closely linked and together threaten the Earth's life-support systems.
2

2. Environmental Pollution

  • Environmental pollution is the undesirable change in the physical, chemical, or biological characteristics of the environment caused by pollutants.
  • Pollutants may be solid, liquid, or gaseous.
  • Main human causes include industrialisation, urbanisation, burning of fossil fuels, deforestation, and excessive use of plastics and chemicals.
3

3. Air Pollution and AQI

  • Air pollution is the contamination of air by harmful substances that affect living organisms and the environment.
  • Main sources include burning of fossil fuels, vehicle emissions, industrial activities, construction work, and burning of waste.
  • Major air pollutants are particulate matter, sulphur dioxide, nitrogen oxides, carbon monoxide, and ground-level ozone.
4

4. Water Pollution

  • Water pollution is the contamination of water bodies such as rivers, lakes, oceans, and groundwater by harmful substances.
  • The Great Pacific Garbage Patch is estimated to contain roughly 79,000 metric tons of debris, and 99.9% of it is plastic.
  • Domestic sewage, industrial effluents, urban runoff, mining activities, and thermal pollution are major water pollutants.

Key Concepts

Central concept: Triple Planetary Crisis

Environmental PollutionBiodiversity LossClimate ChangeEnvironmental Pollution SourcesAir Quality IndexWater Pollution ProcessesSoil Pollution ProcessesPlastic Pollution

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Frequently Asked Questions

What are the important topics in Triple Planetary Crisis for ICSE Class 9 Environmental Science?
Key topics in Triple Planetary Crisis include Triple Planetary Crisis: Core Idea, Environmental Pollution, Air Pollution and AQI, Water Pollution. Study these first, then practise questions on each for Class 9 exams.
How should I revise Triple Planetary Crisis for Class 9 exams?
Learn the core ideas first, then work through the 58 practice questions on Triple Planetary Crisis. Revise 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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All ICSE Class 9 Environmental Science Syllabus

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