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Chapter 7 of 17
Revision Notes

Water Resources

ICSE · Class 10 · Geography

Quick revision notes for Water Resources — ICSE Class 10 Geography. Key concepts, formulas, and definitions for last-minute revision.

40 questions40 flashcards5 concepts

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An infographic showing key statistics about India's share of world surface area, water resources, population, total precipitation, and utilisable water resources.
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Key Topics to Revise

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1. Our Water Resources

  • India has only 4% of the world's water resources despite being home to 16% of the world's population.
  • India receives about 4000 km³ of water annually from precipitation including snowfall.
  • Surface water is found on the earth's surface in rivers, lakes, ponds and canals.
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2. Importance and Need for Irrigation in India

  • Irrigation means the process of supplying water to crops by artificial measures such as canals, wells, tube wells, lakes from the existing natural sources of water like rivers, tanks, ponds or undergr
  • India experiences a tropical monsoon climate that is uneven, erratic, unreliable and uncertain.
  • The south-west monsoon is responsible for 90% of India's rainfall.
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3. Favourable Factors for Development of Irrigation

  • The soils of the Indo-Gangetic plains are soft and gently sloping, which makes digging canals and wells easier.
  • The deep clay in the subsoil acts as a reservoir for storing rainwater.
  • The perennial snow-fed rivers of the plains are regular sources of irrigation.
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4. Means of Irrigation

  • The main means of irrigation are canals, tanks, wells, tube wells and modern methods such as sprinkler irrigation and drip irrigation.
  • Canal irrigation covers about 40% of the total irrigated area in India.
  • Tank irrigation covers about 12% of the total irrigated area in India.

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Key Concepts

Surface water is water found onGroundwater is the part of rainwaterIrrigation is the process of supplyingCanal irrigation supplies water through canalsTank irrigation uses tanks built

Frequently Asked Questions

What are the important topics in Water Resources for ICSE Class 10 Geography?
Key topics in Water Resources include Water Resources of India — Complete Overview, Why India Faces Water Scarcity Despite Heavy Rainfall, Complete Concept Map: Water Resources of India. These are the concepts ICSE Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Water Resources — ICSE Class 10 Geography?
Understand the core concepts first, then work through the 40 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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