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By Savita S. More

GSEB Class 9 Social Science Chapter 15 Drainage System

GSEB Class 9 Social Science Chapter 15 Drainage System Textbook Question Answers as well as Additional Question and Answers.


1. Write short answers for the following questions :

(1) Give difference: Himalayan rivers – Peninsular rivers
Himalayan rivers differ from Peninsular rivers in their water source, flow pattern, and characteristics. Himalayan rivers originate from snowmelt and have perennial flow, while Peninsular rivers rely on rainfall and have seasonal flow variations.


(2) Explain Drainage Pattern and Water Divide
Drainage pattern refers to the arrangement of rivers and their tributaries in a geographical area, while water divide is a geographical feature such as a mountain or upland that separates the flow of water between different river systems.


(3) Explain the utility of lakes
Lakes are useful for storing water, supporting agriculture, generating hydel power, enhancing natural beauty, promoting tourism, and serving as habitats for fishery.


(4) State the remedies to prevent water pollution.
Remedies to prevent water pollution include implementing strict rules, filtering industrial effluents, managing waste disposal, and encouraging public participation in conservation efforts.


(5) ‘Godavari is named as Ganga of South’ – Give reasons.
Godavari is termed as the “Ganga of the South” because of its large basin, long flow, and significant role in supporting agriculture and civilization in southern India.


2. Answer the following:

(1) Explain the Ganga River System.
The Ganga River System originates from the Gangotri area in the Himalayas, where the Bhagirathi and Alaknanda rivers merge. It flows through the northern plains, receiving major tributaries like Yamuna, Ghaghra, Gandak, and Kosi, before finally emptying into the Bay of Bengal.

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