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Water, Soil, and Environmental Pollution — Syllabus

ICSE · Class 11 · Environmental Science

What Water, Soil, and Environmental Pollution covers in ICSE Class 11 Environmental Science: 4 topics, for the 2026-27 session.

65 questions42 flashcards5 concepts

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4 Topics · ICSE Class 11 Environmental Science · 2026-27

Topics in Water, Soil, and Environmental Pollution

1

1. Water Pollution and Water Bodies

  • Water pollution is the contamination of rivers, lakes, groundwater, and oceans by physical, chemical, or biological substances that degrade water quality and make it harmful for living organisms.
  • Only a small percentage of Earth's water is available as freshwater suitable for human use.
  • Oceans cover more than seventy per cent of Earth's surface.
2

2. Sources of Water Pollution and Industrial Pollution

  • Point sources of water pollution come from clearly identifiable and specific discharge points.
  • Examples of point sources include industrial discharge pipes, sewage treatment plants, combined sewer overflows, and specific industrial facilities.
  • Non-point sources of water pollution are diffuse and do not come from a single identifiable outlet.
3

3. Domestic Sewage Treatment

  • Domestic sewage is wastewater generated from households and contains human waste, food residues, detergents, soaps, and other organic matter.
  • Untreated sewage can cause oxygen depletion, eutrophication, and water-borne diseases.
  • Primary treatment is the first stage of domestic sewage treatment and mainly involves physical processes.
4

4. Marine Ecosystem Protection and Coastal Zone Management

  • Marine sanctuaries are protected areas where human activities such as fishing, drilling, and industrial operations are restricted.
  • Marine sanctuaries help conserve coral reefs, mangroves, seagrass beds, and endangered species.
  • Along India's long coastline, six major marine sanctuaries and marine national parks are commonly highlighted.

Key Concepts

Central concept: Environmental pollution and its management in water, soil, coastal zones, radioactive emissions, noise, and microplastics

Water pollutionSources of water pollutionIndustrial water pollutionDomestic sewage treatmentMarine ecosystem protectionIntegrated Coastal Zone ManagementRegulated coastal developmentRegulations to prevent marine pollution

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Frequently Asked Questions

What are the important topics in Water, Soil, and Environmental Pollution for ICSE Class 11 Environmental Science?
Key topics in Water, Soil, and Environmental Pollution include Water Pollution and Water Bodies, Sources of Water Pollution and Industrial Pollution, Domestic Sewage Treatment, Marine Ecosystem Protection and Coastal Zone Management. Study these first, then practise questions on each for Class 11 exams.
How should I revise Water, Soil, and Environmental Pollution for Class 11 exams?
Learn the core ideas first, then work through the 65 practice questions on Water, Soil, and Environmental Pollution. 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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All ICSE Class 11 Environmental Science Syllabus

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