Chapter 11 of 14
Revision Notes
Environmental Health and Disease Prevention — Revision Notes
ICSE · Class 11 · Environmental Science
Environmental Health and Disease Prevention revision notes for ICSE Class 11 Environmental Science: 4 topics in quick points.
64 questions40 flashcards5 concepts
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Key Topics to Revise
1
Health and Environment
- Health has three dimensions: physical, mental, and social.
- A healthy environment supports good health through clean air, safe drinking water, nutritious food, and hygienic surroundings.
- Polluted air, contaminated water, poor sanitation, and waste accumulation increase disease risk.
2
Communicable Diseases
- Communicable diseases spread from one person to another through pathogens.
- They are caused by microorganisms such as bacteria, viruses, protozoa, or parasites.
- Examples include cholera, malaria, tuberculosis, and dengue.
3
Malaria
- Malaria is caused by Plasmodium, a protozoan parasite.
- In humans, malaria is caused by four Plasmodium species: P. falciparum, P. malariae, P. ovale, and P. vivax.
- It is transmitted through the bite of infected female Anopheles mosquitoes.
4
Enteric Diseases and Safe Water
- Enteric diseases are infections of the intestinal tract spread through contaminated food and water.
- Cholera, typhoid, and dysentery are examples of enteric diseases.
- Poor sanitation, open defecation, and poorly managed sewage contaminate water sources.
Get complete notes with diagrams and examples
Full NotesKey Concepts
Health means complete physicalClean airMalaria is a communicable disease causedCholeraAsthma
Frequently Asked Questions
What are the important topics in Environmental Health and Disease Prevention for ICSE Class 11 Environmental Science?
Key topics in Environmental Health and Disease Prevention include Health and Environment, Communicable Diseases, Malaria, Enteric Diseases and Safe Water. Study these first, then practise questions on each for Class 11 exams.
How should I revise Environmental Health and Disease Prevention for Class 11 exams?
Learn the core ideas first, then work through the 64 practice questions on Environmental Health and Disease Prevention. 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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