Water Resources — الجغرافيا – الصف 10 (CBSE) بشرح مبسّط

ما ستتعلّمه

1. 1

   الدرس 1: Why a Renewable Resource Becomes Scarce

   7 دقائق
   • Water Supports Life and Keeps Moving
   • Water Scarcity Is Not Only About Rainfall
   • Water Everywhere, but Drinking Water Is Scarce
   • Food Production Places Heavy Demands on Water
   • Industry and Urbanisation Intensify Water Pressure
   • Atal Jal: From Consumption to Conservationغير مُقيَّم
   • Enough Water Can Still Be Unsafe Water
   • Conservation Protects Health, Food and Livelihoods
2. 2

   الدرس 2: Multi-purpose River Projects: Purposes and Consequences

   7 دقائق
   • Hydraulic Structures Have a Long Historyغير مُقيَّم
   • One River Project Can Serve Several Purposes
   • What a Dam Does and How It Is Classifiedغير مُقيَّم
   • Projects Link Agriculture and Industry
   • A Bhadu Song Expresses the Experience of Floodingغير مُقيَّم
   • Damming Changes River Flow and Habitats
   • Sardar Sarovar: Water for Drought-prone Areas
   • Flood-control Dams Can Have Unintended Consequences
3. 3

   الدرس 3: Managing Water: Irrigation, Map Work and Harvesting

   7 دقائق
   • Irrigation Must Balance Access and Efficiency
   • Upstream Diversion Can Affect Downstream Usersغير مُقيَّم
   • Board Map Work: Names and Supported Locations
   • Harvesting Methods Match Local Conditions
   • Flood Safety: Warnings, Safe Movement and Clean Water
   • Rajasthan's Tankas Store Rooftop Rainwater
   • Rooftop Water Can Support Groundwater Recharge
   • Stored Water Supports Use Between Rainfalls
4. 4

   الدرس 4: Rainwater Harvesting in Practice

   7 دقائق
   • Shillong: Heavy Regional Rainfall Does Not End Scarcityغير مُقيَّم
   • New Water Supply Can Change Traditional Practice
   • Gendathur Adapts Rooftop Harvesting to Household Needs
   • Tamil Nadu Makes Rooftop Harvesting Compulsoryغير مُقيَّم
   • Bamboo Pipes Deliver Water Near Plant Rootsغير مُقيَّم
   • Investigate Pollution and Discuss Competing Water Needs
   • Use Evidence to Classify Scarcity and Evaluate Projects
   • Recap: Explain Scarcity, Evaluate Projects and Trace Harvesting

المفاهيم الأساسية

Water uses and renewability

Surface run off and ground water are continually renewed and recharged through the hydrological cycle.

Interpreting water-scarcity evidence

Water is visible, but obtaining drinking water remains difficult.

Agricultural water demand

Irrigated agriculture is the largest consumer of water. Farmers use wells and tube-wells to increase their produce, but continued over-exploitation can make groundwater levels fall.

Multi-purpose river projects

The many uses of impounded water are integrated, so these dams are called multi-purpose projects.

Flood-control limitations

Flood control is one purpose of dams, but it is not a guaranteed outcome. Sedimentation in reservoirs can trigger floods, and big dams are mostly unsuccessful in controlling floods during excessive rainfall.

Locally adapted harvesting

The important principle is adaptation: the method responds to the setting and the purpose.

Recharge diagram interpretation

Some water is used immediately, while the excess supports recharge.

Gendathur adaptation

Rooftop rainwater harvesting is successfully adapted in many rural and urban parts of India. Gendathur is a village in Mysuru, Karnataka, where villagers install household rooftop systems to meet their water needs.

تركيز الامتحان

Board exam

CBSE assesses this chapter in the 2026-27 year-end board examination.

Syllabus

Water Resources. Learning outcomes: examine the reasons for conservation of water resource in India; analyse and infer how the multipurpose projects are supporting the requirement of water. Map work: Water Resources - Locating and Labeling: Salal, Bhakra Nangal, Tehri, Rana Pratap Sagar, Sardar Sarovar, Hirakund, Nagarjun Sagar, Tungabhadra.

Not assessed

These parts go beyond the 2026-27 syllabus and are taught for understanding only: Atal Jal: From Consumption to Conservation, Hydraulic Structures Have a Long History, What a Dam Does and How It Is Classified, A Bhadu Song Expresses the Experience of Flooding, Upstream Diversion Can Affect Downstream Users, Shillong: Heavy Regional Rainfall Does Not End Scarcity, Tamil Nadu Makes Rooftop Harvesting Compulsory and Bamboo Pipes Deliver Water Near Plant Roots.

Map work

Board map items (locate and label; may also be asked for identification): dams Salal, Bhakra Nangal, Tehri, Rana Pratap Sagar, Sardar Sarovar, Hirakund, Nagarjun Sagar, Tungabhadra. The 2026-27 sample paper Q19 asked for Sardar Sarovar (Narmada, Gujarat) or Bhakra Nangal (Sutluj-Beas basin).

Exam note

(sample paper Q16, rainwater harvesting in a drought-prone district, shows the board situational style.) Do not supply locations from memory; flag for owner review.

Map work

The board sets word-only alternatives to map questions for visually impaired candidates (2026-27 sample paper Q9/Q19, e.g. "Where is the Meenambakkam international airport located?"), so stating each place and its location in words is directly exam-useful.

Paper pattern

Social Science 80 marks, 3 hours, 38 questions; Section B Geography 20 marks (17 + 3 map pointing). VSA 2 marks (<=40 words), SA 3 marks (<=60 words), LA 5 marks (<=120 words), case-based 4 marks (3 sub-questions, <=100 words); map question in Geography 3 marks.

Question style

About 50% of board questions are competency-focused.

Practice in the app

93 board-pattern questions with marking schemes: 30 multiple choice (1 mark), 28 very short answer (2 marks), 20 short answer (3 marks), 5 long answer (5 marks) and 10 case-based (4 marks).

أسئلة نموذجية مع نقاط التصحيح

أسئلة بنمط امتحان المجلس من مجموعة تدريبات AI Lessons لهذا الفصل. توضّح نقاط التصحيح ما يبحث عنه المصحّح؛ والإجابات النموذجية الكاملة في التطبيق.

1. Very short answerدرجتان

   Aquatic fauna previously moved along a continuous river during spawning. Explain how constructing a dam can interfere with this movement.

   نقاط التصحيح

   • Dams fragment rivers and interrupt their continuity.1
   • River fragmentation makes aquatic migration difficult, especially for spawning.1

2. Short answer3 درجات

   A hill village wants a system that separates water collection from water use. Using the arrangement in Kaza village, describe how it could convey, store and release water.

   نقاط التصحيح

   • A kul conveys water to the village tank.1
   • A circular village tank collects and stores the water.1
   • Water is released from the tank as and when required.1

3. Long answer5 درجات

   A household in semi-arid Rajasthan wants to collect rooftop rainwater for dry months. Explain the collection route to a tanka, the handling of the first spell of rain and the benefit of storage. Then state the extent of household adoption and annual per-house collection in Gendathur as evidence of modern use of this harvesting principle.

   نقاط التصحيح

   • Rainwater travels from a sloping roof through a pipe into an underground tanka in the main house or courtyard.1
   • The first spell of rain is not collected because it cleans the roof and pipes; subsequent showers are collected.1
   • Stored rainwater remains available until the next rainfall and supplies drinking water when other sources dry up, particularly in summer.1
   • Nearly 200 households in Gendathur have installed rooftop harvesting systems to meet their water needs.1
   • Each house in Gendathur can collect and use about 50,000 litres annually.1

الأسئلة الشائعة

فصول أخرى في الجغرافيا – الصف 10

• الجغرافيا · الفصل 4Agricultureالدروس: 4 · الدقائق: 25→
• الجغرافيا · الفصل 5Minerals and Energy Resourcesالدروس: 5 · الدقائق: 31→
• الجغرافيا · الفصل 6Manufacturing Industriesالدروس: 5 · الدقائق: 31→
• الجغرافيا · الفصل 1Resources and Developmentالدروس: 4 · الدقائق: 26→

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