NCERT Solutions For Class 9 Geography Chapter - 3 Drainage

NCERT Solutions for Class 9 Geography Chapter - 3 Drainage

Orchids International School strives to give learners in-depth knowledge of all the crucial topics, including Drainage, covered in Class 9 Geography Chapter 3. We support this by our well-developed NCERT solutions whereby students will be able to gain insight into the intricacies of drainage systems and their importance. The content is made interesting and easy to comprehend, making learning a joy rather than a chore.

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Access Answers to NCERT Solutions for Class 9 Geography Chapter - 3 Drainage

Students can access the NCERT Solutions for Class 9 Geography Chapter - 3 Drainage. Curated by experts according to the CBSE syllabus for 2023–2024, these step-by-step solutions make SST-Geography much easier to understand and learn for the students. These solutions can be used in practice by students to attain skills in solving problems, reinforce important learning objectives, and be well-prepared for tests.

Drainage

Question 1 :

Choose the right answer from the four alternatives given below.

i). In which of the following states is the Wular lake located?

Rajasthan
Uttar Pradesh
Punjab
Jammu and Kashmir

ii). The river Narmada has its source at

Satpura
Brahmagiri
Amarkantak
Slopes of the Western Ghats

iii). Which one of the following lakes is a salt water lake?

Sambhar
Dal
Wular
Gobind Sagar

iv). Which one of the following is the longest river of the Peninsular India?

Narmada
Krishna
Godavari
Mahanadi

v). Which one amongst the following rivers flows through a rift valley?

Mahanadi
Tungabhadra
Krishna
Tapi

Answer :

i). (d) Jammu and Kashmir

ii). (c) Amarkantak

iii). (a) Sambhar

iv). (c) Godavari

v). (d) Tapi

Question 2 :

Answer the following questions briefly.

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

ii). Which is the largest river basin in India?

iii). Where do the rivers Indus and Ganga have their origin?

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

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

vi). Which two Peninsular rivers flow through trough?

vii). State some economic benefits of rivers and lakes.

Answer :

i). A mountain range or a hill separating two different drainage basins is called a water divide. For example, Western Ghats.

ii). The Ganga river basin is the largest river basin in India.

iii). The Indus river has its origins in Tibet near the Mansarovar Lake while the Ganga River has its origins in the Gangotri Glacier in Uttarakhand state.

iv). Alaknanda and Bhagirathi are the two headstreams of the Ganga. They both meet to form the Ganga at Devprayag.

v). The Brahmaputra river also known as Tsangpo in Tibet receives very little volume of water in Tibet so it carries little silt there. But once it enters into India from Arunachal Pradesh, it is fed by lots of rains and hence carries lots of water and silt.

vi). The two rivers that flow through troughs in India are Narmada and Tapi. They form estuaries while entering the sea unlike deltas.

vii). Rivers are very beneficial for agricultural purposes and generating hydro- electricity. They also provide fisheries and inland channels for transportation. The lakes like the Sambhar Lake provide edible salts to people. They also help to develop tourism and provide recreation for people such as Panging Tso.

Question 3 :

Below are given names of a few lakes of India. Group them under two categories – Natural and created by human beings.

Wular
Dal
Nainital
Bhimtal
Gobind Sagar
Loktak
Barapani
Chilika
Sambhar
Rana Pratap Sagar
Nizam Sagar
Pulicat
Nagarjuna Sagar
Hirakud

Answer :

The Natural Lakes are: Wular, Dal, Nainital, Bhimtal, Chilika, Pulicat, Sambhar, Barapani, Loktak.

The Lakes created by human beings are: Gobind Sagar, Hirakud, Rana Pratap Sagar, Nagarjuna Sagar, Nizam Sagar.

Question 4 :

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

Answer :

The following is the comparison of the two rivers:

S. No.	Himalayan Rivers	Peninsular Rivers
1	Himalayan rivers are perennial.	Peninsular rivers are seasonal.
2	They are fed by glaciers.	They receive water from the rainfall.
3	The Himalayan rivers are long and deep.	The peninsular rivers are short and shallow.
4	They carry a lot silt and sand.	They carry very no silt.
5	These rivers originate in the Himalayas in northern India.	These rivers originate in the Western Ghats.
6	Their drainage basins are large.	Their drainage basins are small.
7	These rivers form very large deltas.	They form very small or no deltas.

Question 5 :

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

Answer :

The following is the comparison of the two rivers:

S. No.	East Flowing Rivers	West Flowing Rivers
1.	They fall into the Bay of Bengal.	They fall into the Arabian Sea.
2.	They form Estuaries	They form Deltas.
3.	They have a large tributary network.	They have no tributary networks.
4.	They do not flow through troughs.	They flow through troughs.

Question 6 :

(i) Why are rivers important for the country’s economy?

(ii) On an outline map of India mark and label the following rivers: Ganga, Satluj, Damodar, Krishna, Narmada, Tapi, Mahanadi, and Brahmaputra.

(iii) On an outline map of India mark and label the following lakes: Chilika Sambhar, Wular, Pulicat, Kolleru.

Answer :

i) The rivers important for the any country’s economy because:

They are a source of natural fresh water which is required for the survival of all living beings.
The rivers provide water for various purposes as well as act as important trade routes within the country.
They also serve as a source of potential energy using hydro power.
It is also used for navigation and transportation and is important for commercial activities.
It also provides great scenic and recreational values for tourism. Thus, they serve as good tourist spots in the state.

NCERT Solutions for Class 9 Geography Chapter - 3 Drainage

NCERT Solutions for Class 9 Geography Chapter - 3 Drainage

Access Answers to NCERT Solutions for Class 9 Geography Chapter - 3 Drainage

Drainage

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