Question

can someone give me the notes of class 9th ncert geography chapter 3 notes

Answer 1

here is ur answer
DRAINAGE PATTERN :

The drainage pattern is the pattern formed by a stream network and refers to the connectivity of the steam tributaries in an area.

1. Trellis pattern

2. Dendritic pattern

3. Parallel Drainage pattern

4. Radical Drainage / Centrifugal pattern.

[ Please see the attached picture.]


➡️TWO TYPES OF RIVER SYSTEMS :

✡️HIMALAYAN RIVERS

1. Indus

2. Ganga.

3. Brahmaputra.

✡️PENINSULAR RIVERS

☣️River flowing into the Bay of Bengal

1. Godavari

2. Krishna

3. Kaveri

4. Mahanadi

☣️River flowing into the Arabian Sea:

1. Narmada

2. Tapi

3. Sabarmati

4. Mahi


➡️DIFFERENCE BETWEEN THE TWO RIVERS


☣️HIMALAYAN RIVERS

1. These river originate from the lofty ranges of the Himalayas.

2. They have large basin and catchment area.

3. They form deep I sheep valleys known as Gorge

4. These river are known as perennial and water flows throughout the year.

5. They are considered to be in a youthful age.

6. These rivers form meanders and often shift their courses

7. They also form big deltas at their mouth.


✡️PENINSULAR RIVERS

1. These river originate in the peninsular plateau.

2. They consist of small basin and catchment area.

3. They mainly flow in shallow valleys.

4. These rivers mostly flow in the rainy season as they are Rain- fed.

5. They are considered to be nature rivers.

6. They do not form meanders and flow more or less in a straight course.

7. They form smaller delta and estuaries.


➡️THE HIMALAYAN RIVERS.

☣️THE INDUS RIVER SYSTEM.

1. It Rises near Lake Mansarovar in Tibet and enters India in the Ladakh district of Jammu and Kashmir.

2. Indus is joined by rivers Beas, Satluj, Ravi, Chenab and Jhelum near mithankot (Pakistan).

3. It's total length is 2900 km, which makes it the largest river of the world.

☣️THE GANGA RIVER SYSTEM.

1. The headquarters of Ganga are known as Bhagirathi.

2. Bhagirathi is fed by the Gangotri Glacier and joined by the Alaknanda at Devprayag.

3. Brahmaputra joins Ganga and flow into the Bay of Bengal.

4. The Delta formed when the Ganga and the Brahmaputra flow into the Bay of Bengal is known as the Sundarban delta.

5. The length of Ganga is 2500 km.


☣️THE BRAHMAPUTRA RIVER SYSTEM.

1. It originate in Tibet and enters India from Arunachal Pradesh and flows to Assam joined by many tributaries.

2. The tributaries that join Brahmaputra the Dihang, Lohit, Kernula.

3. The riverbed in Brahmaputra Rises due to the huge deposits of slit on its bed.


➡️THE PENINSULAR RIVERS

✡️THE GODAVARI BASIN.

1. The river originate from Nashik district of Maharashtra.

2. It is the largest Peninsular river.

3. Godavari is joined by many tributaries such as Purua, Wardha, wanganga and penganga.

4. It is also known as Dakshin Ganga.

✡️THE KRISHNA BASIN

1. The length of the river Krishna is 1400 km.

2. Bheema, Musi, ghatprabha, Koyna and Tungabhadra are its tributaries.

3. The Krishna basin is shared by Andhra Pradesh, Karnataka and Maharashtra.

✡️THE NARMADA BASIN :

1. It originates in the Amarkantak Hills, and floors and creates a gorge in marble rocks of Madhya Pradesh.

2. it mainly flows towards the West in a rift Valley formed due to faulting.



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