Drainage 9th class

JK BOSE

1. Class 9th Chapter No 3 Drainge System of India

2. River Any Natural Stream Of water That flows in a channel with defined banks, The river join by other streams are generally called Tributaries. The River along with all its tributaries from the River system..  

3. How River affects . When a river along with its tributaries drains an area, it affects the area in many ways Vegetation, Agriculture Patterns Human Settlements all can be affected by this.

4. Drainage Basin. Area Drained by river and its tributaries are known as Drainage Basin. Like Missipii in USA, the Nile in Africa, The Congo Drainage basin in Africa. The Amazon Basin.   In India Ganga River forms the largest drainage Basin. These drainage basin go through various changes with the course of time due to some geological events. Like the formations of Water Divide,. Water divide an elevated area which separates two drainage basins.

5. Rivers The Life giving gift of nature to humans. Rivers usually flow from a place that is relatively higher altitude to a place having a lower altitude . The Journery of river having 3 stage

6. The Youthful Stage The Youthful Stage is dominated by vertical erosion. Mostly erosion landforms are crated in this stage. E.g Gorges, valley and Waterfall are formed in this stage. The River carries huge amount of sand and silt in this stage.

7. Mature Stage or Middle Course . IN This stage the stage of river flow is reduced in this stage the in the youthful stage. Lateral erosion dominates the mature stage and can be observed on the sides of the river. Some erosional and depositional landforms can be observed in this stage e.g Oxbow lakes, meanders, flood plains are common land forms in this stage.

8. Older Stage or Lower Course . In this Stage the river flows very slowly and calmly. Mainly deposition is observed in this stage. The Huge amount of sand and silt carried by the rivers from the upper course is deposited in this stage. Most of the landform we found in this stage are depositional landforms and deltas.  

9. Older Stage or Lower Course . In this Stage the river flows very slowly and calmly. Mainly deposition is observed in this stage. The Huge amount of sand and silt carried by the rivers from the upper course is deposited in this stage. Most of the landform we found in this stage are depositional landforms and deltas.  

10. INDIAN RIVER SYSTEM Indian River System can be broadly categorized into  

11. INDIAN RIVER SYSTEM   Himalayan Rivers Peninsular Rivers Himalayan Rivers Originates from the Himalayas Peninsular Rivers Originates from the Deccan Plateau Most of the Himalayan Rivers are very long Most of the Peninsular Rivers are shorter Himalayan Rivers are Perennial Peninsular rivers dry up during summer months Himalayan rivers have a much larger basins Peninsular rivers have a smaller basins

12. Indus River System It is one of the longest rivers in the world and one of the important River system in the world. This river was home to one of the oldest civilization in the world The Harappan civilization. That has a history of more then 4500 years.

13. The Indus River system begin journey near Mansarovar lake in Tibet in China the people identify the river as Sange khumbad or lion mouth.

14. From Tibet it flows towards west the enter India through Ladakh , there are some exquisite site of the Gorge made by the Indus river along its course in this region

15. The Zanskar , The Nubra The Hunza and the Shayok are some of its tributaries that join the Indus river from here the Indus river flows through the region of Baltistan and Gilgit a region in Paksitan .

16. Some other tributaries that Joins Indus are the Satluj ,The Beas, The Ravi , The Chenab, and the Jehlum all of them join together to enter the river near in the city Mithonkot situated in Pakistan the river then flows south and drains into the Arabian sea.

17. This journey spanning at about 2900 Kms . One third of the river located in India and rest in Pakistan, so this is the journey of the river Indus that starts from Tibet and end in Arabian sea.

18. The river has been also a source of conflict between India and Pakistan as there were shared by both the countries there has been some disagreement between the two countries about how to get how much water so to solve this issue the Indus river water treaty as sign Ed in 1960 known as Indus water treaty 1960 that really gives the water of the Western river that is in the Jhelum and the janab to Pakistan and those of the east river the Ravi beas and Sutlej to India consequently India can use 20% of the total water of Indus River system and use this river in the irrigation work in Punjab Haryana and Rajasthan

19. Thank You