Drainage
Madhya Pradesh Board · Class 9 · Social Science
Quick revision notes for Drainage — Madhya Pradesh Board Class 9 Social Science. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Basic Concepts of Drainage
- Drainage describes the river system of an area
- Small streams flow from different directions to form the main river
- Rivers ultimately drain into large water bodies (lakes, seas, oceans)
Classification of Indian Rivers
- Indian rivers are divided into two major groups: Himalayan rivers and Peninsular rivers
- Classification is based on the broad relief features of the subcontinent
- Himalayan rivers: Perennial (water throughout the year), receive water from rain and melted snow
Major Himalayan Rivers
- Three major Himalayan rivers: Indus, Ganga, and Brahmaputra
- These are long rivers joined by many large tributaries
- A river along with its tributaries forms a river system
The Indus River System
- Rises in Tibet near Lake Mansarowar
- Flows west, enters India in Ladakh, forms picturesque gorge
- Tributaries in Kashmir: Zaskar, Nubra, Shyok, Hunza
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Drainage covers several key topics that are frequently asked in Madhya Pradesh Board Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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