Role of Rivers in the Economy

From ancient times, riverbanks have drawn settlers due to the fundamental importance of water from rivers, which serves as a basic natural resource essential for various human activities.

  • Rivers play a important role in irrigation, facilitating the cultivation of crops and supporting agricultural livelihoods.
  • Rivers also contribute to hydro-power generation, harnessing the energy of flowing water to produce electricity, thereby supporting industrial and domestic needs.

NCERT Notes Class 9 Geography: Chapter 3: Drainage

NCERT Notes Class 9 Geography: Geography Class 9 Notes is an important subject in the Social Science curriculum that requires students to have a thorough understanding of the Drainage Systems in India.

Understanding these concepts well is crucial for students. These notes give a clear summary of the main topics, helping students understand the subject better.

Our Geography Notes for Class 9 help improve problem-solving skills and prepare for exams. With these notes, students can build a strong foundation in Geography and improve their problem-solving skills.

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Drainage

The term drainage refers to the river system in an area. If you look at a physical map, you’ll see that smaller streams from various directions merge to form a main river. Eventually, this river flows into a larger water body like a lake, sea, or ocean....

Drainage Systems in India

The drainage systems of India are mainly shaped by its broad relief features. Indian rivers are divided into two main groups: the Himalayan rivers and the Peninsular rivers. There are significant differences between these two groups....

The Himalayan Rivers

The major Himalayan rivers include the Indus, the Ganga, and the Brahmaputra. When we refer to a river along with all its tributaries, we call it a river system....

The Peninsular Rivers

Formation of Water Divide: The main water divide in Peninsular India is formed by the Western Ghats, running from north to south close to the western coast. Direction of Flow: Most major rivers of the Peninsula, such as the Mahanadi, the Godavari, the Krishna, and the Kaveri, flow eastwards and drain into the Bay of Bengal. These rivers form deltas at their mouths. Minor Streams: Numerous small streams flow west of the Western Ghats. Exceptional Rivers: The Narmada and the Tapi are the only long rivers that flow west and make estuaries. Drainage Basin Size: The drainage basins of the peninsular rivers are relatively small....

Lakes

India has a variety of lakes, each differing in size and characteristics:...

Role of Rivers in the Economy

From ancient times, riverbanks have drawn settlers due to the fundamental importance of water from rivers, which serves as a basic natural resource essential for various human activities....

River Pollution

The rising demand for water from rivers for domestic, municipal, industrial, and agricultural purposes is negatively impacting water quality. Rivers are becoming increasingly polluted due to the discharge of untreated sewage and industrial effluents. To address this issue, various action plans have been launched to clean up the rivers and mitigate pollution....

FAQs on NCERT Notes Class 9 Geography: Chapter 3: Drainage

What is drainage in geography?...