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Syllabus

Pollution - Types and Sources — Syllabus

ICSE · Class 9 · Geography

What Pollution - Types and Sources covers in ICSE Class 9 Geography: 4 topics, for the 2026-27 session. Part of the ICSE Class 9 Geography syllabus.

57 questions40 flashcards5 concepts

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A flowchart illustrating the various human activities that lead to water pollution, including industrial, agricultural, and cultural sources, and their impact on water bodies.
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4 Topics · ICSE Class 9 Geography · 2026-27

Topics in Pollution - Types and Sources

1

1. Core Ideas and Definitions

  • Pollution is environmental damage caused by improper management of resources or careless human activity.
  • A pollutant is a substance that causes pollution, such as carbon dioxide and carbon monoxide.
  • Pollutants may be biodegradable like domestic garbage or non-biodegradable like glass and plastic.
2

2. Air Pollution

  • Air with 78% nitrogen, 21% oxygen, and 1% other gases supports life on Earth.
  • Air pollution occurs when large amounts of gases and tiny particles are released into the air and disturb ecological balance.
  • Primary air pollutants are directly released into the air.
3

3. Water Pollution

  • Earth has 71% water and 29% land, but water contamination affects both human life and marine life.
  • Water pollution affects surface water and groundwater.
  • Water pollution can come from natural sources and human sources.
4

4. Soil Pollution

  • Soil pollution or land pollution results from deposition of solid waste, accumulation of biodegradable material, and toxic chemicals in soil.
  • It has been observed that a loss of 6 million hectare of land occurs per year due to soil pollution.
  • Soil pollution causes diseases in humans and animals such as cholera, dysentery, and typhoid.

Key Concepts

Central concept: Pollution: the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects

PollutionPollutantAir pollutionWater pollutionSoil pollutionRadiation pollutionNoise pollution

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Frequently Asked Questions

What are the important topics in Pollution - Types and Sources for ICSE Class 9 Geography?
Key topics in Pollution - Types and Sources include Core Ideas and Definitions, Air Pollution, Water Pollution, Soil Pollution. Study these first, then practise questions on each for Class 9 exams.
How should I revise Pollution - Types and Sources for Class 9 exams?
Learn the core ideas first, then work through the 57 practice questions on Pollution - Types and Sources. 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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