Chapter 16 of 16
Revision Notes
Pollution — Revision Notes
ICSE · Class 10 · Biology
Pollution revision notes for ICSE Class 10 Biology: 4 topics in quick points. Part of the ICSE Class 10 Biology syllabus.
44 questions45 flashcards5 concepts
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See them allKey Topics to Revise
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1. Meaning of Pollution and Pollutants
- Environmental pollution is the deterioration in the quality of the environment due to the addition of undesirable substances.
- Two scientific definitions of pollution are important: one by the Environmental Pollution Panel of the United States Science Advisory Committee (1965) and another by the National Research Council Comm
- Pollutants are substances whose addition to the environment causes pollution.
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2. Types of Pollutants
- On the basis of natural fate, pollutants are of two types: biodegradable pollutants and non-biodegradable pollutants.
- Biodegradable pollutants can be decomposed into harmless substances by microbes.
- Non-biodegradable pollutants resist biotic or abiotic degradation and persist in the environment.
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3. Air Pollution
- Air pollution is an undesirable change in the physical or biological characteristics of air that may affect humans and other living organisms.
- Main causes of air pollution include combustion, industries, pesticides, suspended particulate matter, hydrocarbons and radioactive materials.
- Burning coal, firewood, oil and garbage produces gases like carbon dioxide, carbon monoxide, nitrogen oxide and smoke.
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4. Effects and Control of Air Pollution
- Air pollution damages soft lung tissues and causes respiratory diseases.
- Dust and carbon particles deposit on leaves and reduce photosynthesis.
- Acid rain can have pH as low as 3.0.
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Full NotesKey Concepts
Pollution means an undesirable changePollutants are substances whose additionPolluters are agencies or installationsBy natural fateAir pollution is an undesirable change
Frequently Asked Questions
What are the important topics in Pollution for ICSE Class 10 Biology?
Key topics in Pollution include Meaning of Pollution and Pollutants, Types of Pollutants, Air Pollution, Effects and Control of Air Pollution. Study these first, then practise questions on each for the ICSE Class 10 board exam.
How should I revise Pollution for the ICSE Class 10 board exam?
Learn the core ideas first, then work through the 44 practice questions on Pollution. Revise definitions regularly and use flashcards for quick recall before the exam.
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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