Class 9 Social Science — Chapter 3: DRAINAGE

What you'll learn

• ▸Fundamental Drainage Concepts
• ▸Himalayan vs. Peninsular Rivers
• ▸River Course Features and Landforms
• ▸The Indus River System
• ▸The Ganga River System
• ▸The Brahmaputra River System
• ▸West-Flowing Peninsular Rivers (Narmada & Tapi)
• ▸The Godavari Basin

Chapter Summary

--- PAGE 1 --- 0968CH03 DRAINAGE 3 The term drainage describes the river DRAINAGE SYSTEMS IN INDIA system of an area. Look at the physical map. You will notice that small streams The drainage systems of India are mainly flowing from different directions come together controlled by the broad relief features of the to form the main river, which ultimately drains subcontinent. Accordingly, the Indian rivers into a large water body such as a lake or a sea are divided into two major groups: or an ocean. The area drained by a single river • the Himalayan rivers; and system is called a drainage basin. A closer • the Peninsular rivers. observation on a map will indicate that any Apart from originating from the two major elevated area, such as a mountain or an upland, physiographic regions of India, the Himalayan separates two drainage basins. Such an upland and the Pe…

Practice Questions from this Chapter

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1. Show me real examples of river deltas? Get Solution →
2. What makes rivers flow with such power? Get Solution →
3. Find the longest river in every continent? Get Solution →
4. What term describes the river system of an area? Get Solution →
5. An elevated area, such as a mountain, that separates two drainage basins is known as a what? Get Solution →
6. According to the text, what are the two major groups of Indian rivers? Get Solution →
7. The headwaters of the Ganga, called the 'Bhagirathi', are fed by which glacier? Get Solution →
8. What is the Brahmaputra river known as in Tibet? Get Solution →

Did you know?

• 💡 The Amazon River's outflow dilutes the Atlantic Ocean's saltiness hundreds of miles away.
• 💡 Rivers can flow backward briefly, pushed by extreme tides or powerful storm surges.
• 💡 Some fish navigate hundreds of miles upstream through rivers to reproduce in their birthplaces.
• 💡 The Congo River is the world's deepest river, plunging over 220 meters below its surface.
• 💡 There are powerful rivers under the ocean, formed by dense, salty water flowing downslope.

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