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title: "Water Resources"
board: "CBSE"
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class: "Class 12"
subject: "Geography"
book: "India - People and Economy"
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# Water Resources

Water scarcity is becoming a significant challenge in India, as increased demand coincides with dwindling supplies due to over-utilisation and pollution. This chapter discusses the geographical distribution, sectoral usage, and the methods for conservation and management of water resources in India.

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## Knowledge Snapshot

| Field | Details |
| :--- | :--- |
| Class | Class 12 |
| Subject | Geography |
| Book | India - People and Economy |
| Chapter | Water Resources |
| Pages | 41-52 |

---

## Chapter Summary

### Short Summary
Water resources in India are limited. With only 3% of the world’s water as freshwater, effective management, utilization, and conservation methods are crucial due to increasing demand and pollution.

### Detailed Summary
India covers 2.45% of the world’s surface area and has 4% of its water resources while serving over 17% of the global population. The total annual water availability is approximately 4,000 cubic km, but utilizable water is only 1,122 cubic km. Water is primarily sourced from rivers, lakes, ponds, and tanks, and agriculture consumes the majority of water resources. Noteworthy projects such as the Pradhan Mantri Krishi Sinchayee Yojana aim to enhance irrigation access to promote agricultural productivity. Due to factors like pollution and overuse, comprehensive management strategies focusing on conservation, recycling, and community participation are essential for sustainable development in water management.

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## Topic-Wise Explanation

### Water Resources of India
India contains 4% of global water resources, but only 1,122 cubic km is utilizable. Seasonal and geographic disparities affect freshwater availability.

### Surface Water Resources
Major sources include about 10,360 rivers, lakes, ponds, and tanks, with different regions like Kerala and West Bengal hosting rich surface water supplies.

### Water Demand and Utilisation
Agriculture dominates water use, accounting for 89% of surface water and 92% of groundwater usage. The industrial sector's share remains minimal.

### Groundwater Resources
Overexploitation leads to groundwater depletion, particularly in the northwest regions, affecting water quality and availability.

### Emerging Water Problems
Pollution from diverse sources has severely impacted river quality, emphasizing the need for effective legislation and public awareness.

### Water Conservation and Management
Strategies include rainwater harvesting, watershed management, and community-driven initiatives to improve long-term water sustainability.

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## Core Ideas

| Idea | Explanation |
| :--- | :--- |
| Importance of Water Conservation | Essential due to declining freshwater resources and increasing demand. |

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## Key Concepts

| Concept | Meaning |
| :--- | :--- |
| Rainwater Harvesting | Technique to capture and store rainwater for reuse and groundwater recharge. |

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## Important Points for Revision

* Water scarcity is a growing concern due to increased demand and pollution.
* India has only 1,122 cubic km of water available for beneficial use.
* Agriculture is the primary consumer of water resources.
* Major irrigation projects have been implemented to improve agricultural productivity.
* Pollution significantly affects river ecosystems and water quality.
* Community participation is crucial in water conservation efforts.
* Legislative actions have been insufficient in managing water pollution.
* Rainwater harvesting can improve groundwater levels and reduce dependence on surface water.
* Watershed management involves the sustainable use and conservation of natural resources.

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## Practice Questions

### Short Answer Questions
1. What percentage of the world’s water resources does India hold?
2. Describe the impact of overexploitation on groundwater in Punjab.
3. What is the main aim of the Pradhan Mantri Krishi Sinchayee Yojana?
4. How does agriculture affect surface and groundwater utilization?
5. Mention two major methods of water conservation discussed in the chapter.

### Long Answer Questions
1. Discuss the implications of water scarcity in India and its future challenges.
2. Explain the significance of surface water resources and their geographical distribution in India.
3. Analyze the effectiveness of legislative measures taken to control water pollution in India.

---

## Related Concepts

* National Water Policy 2012
* Sustainable Development
* Water Quality Management

---

## Source Attribution

| Field | Value |
| :--- | :--- |
| Source | Edzy |
| Reference Type | examSubjectBookChapter |
| Reference ID | 66dfd8e83f8b4e9e69bf74a1 |
| Canonical URL | https://www.edzy.ai/cbse-class-12-geography-india-people-and-economy-water-resources |
| Markdown URL | https://www.edzy.ai/okf/chapter/cbse-class-12-geography-india-people-and-economy-water-resources.md |