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Pollution: Causes, Effects and Prevention

ICSE · Class 4 · Social Science

Quick revision notes for Pollution: Causes, Effects and Prevention — ICSE Class 4 Social Science. Key concepts, formulas, and definitions for last-minute revision.

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Key Topics to Revise

1

What is Pollution?

  • Pollution occurs when harmful substances (called pollutants) are added to the environment.
  • Pollutants make air, water, and land dirty and unsafe.
  • Pollution affects all living things including humans, animals, and plants.
2

Types of Pollution

  • There are four main types of pollution: Air, Water, Noise, and Land pollution.
  • Each type has different causes, effects, and ways to prevent it.
3

Causes and Effects of Pollution

  • Air pollution is caused by vehicle smoke, factory emissions, and bursting crackers.
  • Water pollution happens due to dumping garbage, factory waste, and oil spills.
  • Noise pollution comes from vehicles, airplanes, loudspeakers, and firecrackers.
4

Prevention of Pollution

  • We can reduce air pollution by using public transport, planting trees, and using CNG vehicles.
  • Water pollution can be prevented by treating sewage and not dumping waste in rivers.
  • Noise pollution can be reduced by avoiding loud sounds and using silencers.

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Key Concepts

Pollution occurs when harmful substances likeThere are four main typesPollution is caused by human activitiesWe can reduce pollution by using

Frequently Asked Questions

What are the important topics in Pollution: Causes, Effects and Prevention for ICSE Class 4 Social Science?
Pollution: Causes, Effects and Prevention covers several key topics that are frequently asked in ICSE Class 4 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Pollution: Causes, Effects and Prevention — ICSE Class 4 Social Science?
Understand the core concepts first, then work through the 50 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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