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Revision Notes

Water Resource and Type of Irrigation

ICSE · Class 12 · Geography

Quick revision notes for Water Resource and Type of Irrigation — ICSE Class 12 Geography. Key concepts, formulas, and definitions for last-minute revision.

70 questions48 flashcards5 concepts

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Key Topics to Revise

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1. Water as a Resource and Water Availability in India

  • About 71 per cent of the earth's surface is covered with oceanic water, but fresh water constitutes only 3 per cent of the total water.
  • India occupies only 2.45 per cent of the world's surface area and has about 17.4 per cent of the world's population.
  • India has only 4 per cent of the world's water resources.
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2. Surface Water and Groundwater

  • Surface water is available in rivers, lakes, tanks, ponds and other water bodies.
  • Rivers are the most important source of surface water in India.
  • Three major rivers of North India, namely the Indus, the Ganga and the Brahmaputra, carry nearly 60 per cent of India's total surface water.
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3. Water Demand, Water Pollution, and Conservation

  • India is basically an agricultural country where 54.6 per cent of the population depends on agriculture.
  • Agriculture is the largest consumer of water.
  • Agriculture accounts for 89 per cent of surface water utilisation and 92 per cent of groundwater utilisation.
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4. National Water Policy and Water Conservation Priorities

  • National Water Policy 2002 sets water allocation priorities in a definite order.
  • The priority order is drinking water, irrigation, hydroelectric generation, industrial, and other miscellaneous uses.
  • Drinking water for all human beings and animals has the first priority.

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Full Notes

Key Concepts

About 71 per cent ofIndia has 2Surface water includes riversGroundwater is rainwater that percolates undergroundAbout three

Frequently Asked Questions

What are the important topics in Water Resource and Type of Irrigation for ICSE Class 12 Geography?
Water Resource and Type of Irrigation covers several key topics that are frequently asked in ICSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Water Resource and Type of Irrigation — ICSE Class 12 Geography?
Understand the core concepts first, then work through the 70 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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