Chapter 16 of 18
Revision Notes
Effects of Pollution — Revision Notes
ICSE · Class 9 · Geography
Effects of Pollution revision notes for ICSE Class 9 Geography: 4 topics in quick points. Part of the ICSE Class 9 Geography syllabus.
62 questions38 flashcards5 concepts
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Key Topics to Revise
1
1. Environmental Pollution: Basic Idea
- Environmental pollution is one of the most serious threats facing the world.
- Air, water, and soil are life-supporting systems for living beings.
- Polluted air can cause illness and can even be fatal.
2
2. Effects of Air Pollution
- The atmosphere is the blanket of air around the Earth and it supports life.
- The atmosphere contains nitrogen, oxygen, argon, carbon dioxide, helium, methane, krypton, ammonia, and carbon monoxide, among other gases.
- Air composition can be disturbed by natural calamities and human activities.
3
3. Effects of Water Pollution
- Water pollution may be defined as the presence of impurities in water.
- Sources of water pollution include sewage and domestic waste, industrial effluents, fertilisers, and oil spills.
- Water pollution affects health through micro-organisms, chemical toxicants, mosquito-borne diseases, and biological agents.
4
4. Effects of Soil Pollution
- Soil pollution by chemicals and organic materials creates health hazards for humans.
- Chemical fertilisers can wash into waterways, lakes, and underground aquifers.
- Chemical fertilisers poison water supplies and kill aquatic life.
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Full NotesKey Concepts
Environmental pollution is the damage causedThe atmosphere is made upNitrogen cycleDepletion of vegetation and increased carbonAir pollution can cause asthma
Frequently Asked Questions
What are the important topics in Effects of Pollution for ICSE Class 9 Geography?
Key topics in Effects of Pollution include Environmental Pollution: Basic Idea, Effects of Air Pollution, Effects of Water Pollution, Effects of Soil Pollution. Study these first, then practise questions on each for Class 9 exams.
How should I revise Effects of Pollution for Class 9 exams?
Learn the core ideas first, then work through the 62 practice questions on Effects of Pollution. 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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