Pollution
ICSE · Class 10 · Biology
Quick revision notes for Pollution — ICSE Class 10 Biology. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Introduction to Pollution
- Environmental pollution is a large change in environmental quality that adversely affects plant and animal life
- Pollutants are substances that cause pollution when added to the environment
- Polluters are agencies or installations that release pollutants (factories, vehicles, power stations)
Air Pollution
- Undesirable change in physical or biological characteristics of air affecting living organisms
- Main sources: Combustion (vehicles, industries), industrial emissions, pesticide spraying, suspended particulate matter
- Major pollutants: CO₂, CO, SO₂, NO, hydrocarbons, CFCs, radioactive materials
Water Pollution
- Introduction of foreign material into natural water reducing aquatic life diversity
- Sources: Domestic wastes, industrial effluents, agricultural runoff, mining wastes, sewage
- BOD (Biochemical Oxygen Demand) measures pollution extent - oxygen needed to oxidize organic matter
Soil Pollution
- Contamination of soil by harmful substances affecting its fertility and structure
- Sources: Industrial wastes (salts, metals, chemicals), agricultural chemicals, farm animal wastes, household wastes
- Effects: Soil erosion, reduced fertility, destruction of soil microorganisms, biomagnification through food chain
Get complete notes with diagrams and examples
Full NotesKey Concepts
Get detailed revision notes for Pollution
Super Tutor gives you interactive content for every chapter of ICSE Class 10 Biology — summaries, quizzes, flashcards, and more.
Try Super Tutor — It's FreeFrequently Asked Questions
What are the important topics in Pollution for ICSE Class 10 Biology?
Pollution covers several key topics that are frequently asked in ICSE Class 10 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 — ICSE Class 10 Biology?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More Resources for Pollution
Important Questions
Practice with board exam-style questions
Syllabus
What topics to cover
Study Plan
Step-by-step plan to ace this chapter
Flashcards
Quick-fire cards for active recall
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Practice Quiz
Test yourself with a quick quiz
Concept Maps
See how topics connect visually