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9th Standard CBSE Social Science Unit 6 Drainage Book Back Questions

Published on: 04/09/2019

Drainage

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Std: 9th Standard CBSE - Social Science

chapter: - Model Question paper

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Questions:

Multiple Choice Question

7 x 1 = 7

The largest delta in the world is :

(a)

Ganga delta

(b)

Mahanadhi delta

(c)

Sunderban delta

(d)

Godaveri delta

From where does the river Tapi arise?

(a)

Amarkantak

(b)

Satpura

(c)

Western Ghats

(d)

Mahablaeshwar

What is called a river system?

(a)

A river

(b)

A river and a lake

(c)

A river and its tributaries

(d)

A stream

Which of the following has the largest drainage pattern in India?

(a)

The Indus

(b)

The Ganga

(c)

The Brahmaputra

(d)

The Mahanadi

An elevated area, seperating two drainage basin is known as

(a)

water joint

(b)

water divide

(c)

drainage pattern

(d)

drainage basin

The river Narmada has its source at

(a)

Satpura

(b)

Amarkantak

(c)

Brahmagiri

(d)

Slopes of the Western Ghats

Which one of the following describes the drainage patterns resembling the branches of a tree?

(a)

Radial

(b)

Centrifugal

(c)

Dendritic

(d)

Trellis

Generic 2

7 x 2 = 14

Name the three major river system of the Himalayas.

Which two Peninsular rivers flow through trough?

10.

Why does the Brahmaputra in its Tibetan part have less silt,despite a longer course?

11.

Name the two headstreams of the Ganga.Where do they meet to form the Ganga?

12.

Where do the river Indus and Ganga have their origin?

13.

What is the largest river basin in India?

14.

What is meant by a water divide? Give an example.

Generic 3

2 x 3 = 6

15.

Compare the east flowing and the west flowing rivers of the Peninsular plateau.

16.

State some economic benefits of rivers and lakes

Generic 5

1 x 5 = 5

17.

Discuss the significant difference between the Himalayan and the Peninsular rivers.

1 Marks

3 x 1 = 3

18.

Make a list natural and artificial lakes with the help of the atlas.

19.

The name of the biggest waterfall in India?

20.

Which river has the largest basin in India?

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Answers Key:

Multiple Choice Question

7 x 1 = 7

(b)
Satpura

(b)
The Ganga

(b)
water divide

(b)
Amarkantak

(b)
Centrifugal

Generic 2

7 x 2 = 14

(i) The Indus river system
(ii) The Ganga river system
(iii)The Brahmaputra river system.

Two Peninsular rivers flowing in troughs:
(a)Narmada
(b)Tapi(Tapti)

10.

The Brahmaputra in its Tibet part has silt because of hard terrain and steep slope.

11.

Two headstreams of Ganga:
(a) Bhagirathi.From Gangotri glacier.
(b) Alakananda.From uplands beyond Devaprayag
They both converege as Ganga at Devaprayag.

12.

Origin of the Indus and the Ganga:
(a) Indus: Near Kailash mountains,Mansarovar lake.
(b) Ganga: G0-mukh/Gangotri Glacier(Ganga originates from this glacier as Bhagirathi)

13.

Ganga River Basin is the largest river basin in India.

14.

A water divide means the upland which divides the two drainage basins from each other.
Example: Ambala-Saharnpur upland seperates the Indus Basin from the Ganga Basin

Generic 3

2 x 3 = 6

15.

Comparison between East flowering and West flowering rivers of the Peninsular Plateau.

East Flowering Rivers	West Flowering Rivers
1.Mahanadi,Godavari,Krishna,and Kaveri are most important east flowing rivers of the Peninsular plateau	1.West flowing rivers of the Peninsular plateau include Narmada,Tapi,etc.
2.They flow eastwards and drain into the Bay of Bengal	2.They originate in the central parts of the Peninsular and drain into Arabian Sea.
3.These rivers form deltas at their mouth	These rivers from estuaries at their mouth.
4.These rivers are have numerous tributaries	4.These rivers are devoid of any remarkable tributary

16.

Economic Benefits of Rivers and Lakes
(a) Rivers and lakes provided water to humans as a basic natural resources.Water is essential for human,agriculture and industries activities
(b) Rivers and their alluvial soil provide agriculture lands.
(c) Water of the rivers is taken to agriculture fields through canals for irrigation of agriculture crops.It helps to fight the vagaries of the monsoon rains.
(d) River water is stored in big lakes by damming them and is used for generation of hydroelectricity
(e) They also carry city wastes
(f) Rivers provide recreational facilities

Generic 5

1 x 5 = 5

17.

The Himalayan Rivers	The Peninsular Rivers
1. Rivers of the Himalayan region originate from the glaciers in the high mountain region	1. Rivers of the Peninsular India originate from plateaus or high lands.
2. Glaciers are the major sources of water in these rivers. Hence, they are perennial in nature. Water remains throughout the year in them.	2. These rivers get water mainly from rains. Hence, they are seasonal. During dry season they get dried up or are very slow and meagre flow of water is seen in them.
3. These rivers bring new alluvium daily and spread in the plains. Hence, they are known for agriculture.	3. They do not spread silt and no major plains are found in the Peninsular India. Fertile lands are seen only in small deltas.
4. These rivers flow in plains. Hence, they are slow flowing rivers. If electricity is to be produced, dams are erected on them to build artificial water falls.	4. Because of undulating topography, these rivers flow with high-speed forming waterfalls. Hence, they are suitable for generation of hydel power.
5. Construction of canals is cheap and easy. Hence, numerous canals have been built to carry water to the fields.	5. Hard resistant rocks and undulating surface hinder the construction of canals in this region.
6. These rivers are subdivided into two (1) Rivers flowing into the Arabian Sea, the Indus and its tributaries. (2) Rivers flowing into the Bay of Bengal, the Brahmaputra, the Ganga and its tributaries, Tista and Manas.	6. These rivers are also subdivided as rivers flowing into the Arabian Sea and those flowing into the Bay of Bengal. Narmada and Tapti flow into Arabian Sea; and Mahanadi, Krishna, Godavari and Kaveri into the Bay of Bengal.
7. The Ganga and the Brahmaputra are navigable.	7. These are not fit for navigation.

1 Marks

3 x 1 = 3

18.

()
Natural Lakes:
Wular,Dal,Sambhar,Loktak(Manipur),Vembnad,Pulicat,Kolleru,Chilika
Arfificial Lakes:
Gobind Sagar,Rana Pratap Sagaar,Gandhi Sagar, Gobinad Ballabh Pant Sagar,Nizam Sagar,Nagarjuna Sagar,Krishna Sagar,Linganamakki (Karnataka).

19.