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Environmental Health and Disease Prevention

ICSE · Class 11 · Environmental Science

Quick revision notes for Environmental Health and Disease Prevention — ICSE Class 11 Environmental Science. Key concepts, formulas, and definitions for last-minute revision.

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.

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Full Notes

Key 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?
Environmental Health and Disease Prevention covers several key topics that are frequently asked in ICSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Environmental Health and Disease Prevention — ICSE Class 11 Environmental Science?
Understand the core concepts first, then work through the 64 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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All 14 chapters — ICSE Class 11 Environmental Science Revision Notes

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