SOCIAL STUDIES CLASS 4 : RIVERS OF INDIA

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Questions and Answers

What are the two main types of rivers in India, based on their origin?

  • Himalayan and Peninsular Rivers (correct)
  • Coastal and Inland Rivers
  • Northern and Southern Rivers
  • Eastern and Western Rivers

Which of the following is a characteristic of Himalayan rivers?

  • They are primarily rain-fed.
  • They are seasonal and dry up in summer.
  • They carry water throughout the year. (correct)
  • They originate from the Eastern Ghats.

From which region does the Indus River originate?

  • Nepal
  • Bhutan
  • India
  • Tibet (correct)

Which glacier is the source of the Bhagirathi River, which then forms the Ganga?

<p>Gangotri Glacier (D)</p> Signup and view all the answers

At which location do the Bhagirathi and Alaknanda rivers join to form the Ganga?

<p>Devprayag (D)</p> Signup and view all the answers

Which of the following rivers is the main tributary of the Ganga?

<p>Yamuna (B)</p> Signup and view all the answers

Which glacier is the origin point of the Yamuna River?

<p>Yamunotri (C)</p> Signup and view all the answers

In which country is the Brahmaputra River initially known as the Tangpo?

<p>Tibet (D)</p> Signup and view all the answers

What is the name of the Brahmaputra River in Bangladesh?

<p>Jamuna (A)</p> Signup and view all the answers

Which is the world's largest river island, formed by the Brahmaputra River in Assam?

<p>Majuli (A)</p> Signup and view all the answers

From which of the following does the Mahanadi River originate?

<p>Eastern Ghats (D)</p> Signup and view all the answers

Which river is also known as 'Dakshin Ganga' due to being the second-longest in India?

<p>Godavari (C)</p> Signup and view all the answers

In which of the following does the Kaveri River originate?

<p>Karnataka (C)</p> Signup and view all the answers

Which sea does the Narmada River drain into?

<p>Arabian Sea (B)</p> Signup and view all the answers

Besides drinking, what are rivers commonly used for?

<p>Irrigation (A)</p> Signup and view all the answers

What is a defining characteristic that distinguishes Himalayan rivers from other types of rivers in India?

<p>They receive water from melting snow and rainfall throughout the year. (B)</p> Signup and view all the answers

Which of the following processes directly contributes to the formation of Himalayan rivers below the snow line?

<p>Melting of glaciers forming small streams. (B)</p> Signup and view all the answers

How does the flow of the Ganga River change as it progresses from Uttarakhand to West Bengal?

<p>It splits into distributaries, with one branch entering Bangladesh. (A)</p> Signup and view all the answers

Which factor primarily determines whether a river is classified as a Himalayan river?

<p>The river's origin being in the Himalayan glaciers. (B)</p> Signup and view all the answers

What significant geographical feature has the Brahmaputra River created in Assam?

<p>The world's largest river island, Majuli. (A)</p> Signup and view all the answers

Considering their origin and flow, how do the Mahanadi and Godavari rivers differ significantly from the Himalayan rivers?

<p>They originate in the Eastern and Western Ghats and are primarily rain-fed. (A)</p> Signup and view all the answers

Which river flows through a relatively shorter distance only in Madhya Pradesh and Gujarat before draining into the Arabian Sea?

<p>Narmada (D)</p> Signup and view all the answers

How does the usage of river water for irrigation contribute to India's economy?

<p>By ensuring a stable water supply for agriculture, leading to increased crop production. (A)</p> Signup and view all the answers

What role do tributaries play in the overall river system, such as that of the Ganga or Yamuna?

<p>They increase the volume of water in the main river and expand its drainage basin. (C)</p> Signup and view all the answers

Which of the following statements accurately contrasts the Brahmaputra River's characteristics in Tibet and Bangladesh?

<p>It is called the Tangpo in Tibet and is known for forming large river islands in Bangladesh. (B)</p> Signup and view all the answers

How does the location of the Kaveri River's origin in the Western Ghats influence agriculture in South India?

<p>It provides a crucial water source for rice cultivation in Karnataka and Tamil Nadu. (D)</p> Signup and view all the answers

Considering the geographical features, what is one key difference between the drainage patterns of the Narmada and Kaveri rivers?

<p>The Narmada drains into the Arabian Sea through an estuary, while the Kaveri forms a large delta on the Tamil Nadu coast. (B)</p> Signup and view all the answers

In what way does the formation of deltas by rivers like the Mahanadi, Godavari, Krishna, and Kaveri contribute to the regional economy?

<p>By creating fertile agricultural lands that support intensive farming and high population densities. (C)</p> Signup and view all the answers

What is a major implication of the Brahmaputra River being known by different names (Tangpo, Dihang, Jamuna) in different regions?

<p>It highlights the river's cultural and regional significance in different countries and states. (D)</p> Signup and view all the answers

How does the Dhola-Sadiya Bridge over the Lohit River, a tributary of the Brahmaputra, benefit the region economically and strategically?

<p>By improving connectivity and reducing travel time between Assam and Arunachal Pradesh. (C)</p> Signup and view all the answers

Himalayan Rivers get water from melting snow and rain.

<p>True (A)</p> Signup and view all the answers

The Indus River drains into the Bay of Bengal.

<p>False (B)</p> Signup and view all the answers

The Ganga originates from the Gangotri glacier.

<p>True (A)</p> Signup and view all the answers

The Yamuna is a minor tributary of the Ganga.

<p>False (B)</p> Signup and view all the answers

The Brahmaputra is known as the Tangpo in Tibet.

<p>True (A)</p> Signup and view all the answers

The Brahmaputra forms the world's smallest river island.

<p>False (B)</p> Signup and view all the answers

The Mahanadi River originates in the Western Ghats.

<p>False (B)</p> Signup and view all the answers

The Godavari River is also known as the Dakshin Ganga.

<p>True (A)</p> Signup and view all the answers

The Krishna River flows through Kerala.

<p>False (B)</p> Signup and view all the answers

The Narmada River drains into the Bay of Bengal.

<p>False (B)</p> Signup and view all the answers

Himalayan rivers, sourced from glaciers and rainfall, maintain a consistent water flow throughout the year, and are therefore termed non-perennial rivers.

<p>False (B)</p> Signup and view all the answers

The Indus River, originating in Tibet, traverses through Ladakh in India, and subsequently flows through Pakistan before eventually emptying into the Arabian Sea.

<p>True (A)</p> Signup and view all the answers

The Ganga River is formed by the confluence of the Bhagirathi and Alaknanda rivers at the location of Uttarkashi.

<p>False (B)</p> Signup and view all the answers

The Dhola-Sadiya Bridge, India's longest river bridge, is constructed over the Manas River, a tributary of the Brahmaputra, connecting Assam and Arunachal Pradesh.

<p>False (B)</p> Signup and view all the answers

In West Bengal, one distributary of the Ganga flows into Bangladesh and is locally referred to as the Meghna, while the other distributary, known as the Hugli, flows through West Bengal and empties into the Bay of Bengal.

<p>False (B)</p> Signup and view all the answers

The Yamuna River originates from the Yamunotri Glacier in the Himalayas and directly drains into the Bay of Bengal.

<p>False (B)</p> Signup and view all the answers

The Brahmaputra River, known as the Tangpo in Tibet, enters India through Himachal Pradesh.

<p>False (B)</p> Signup and view all the answers

Originating in the Eastern Ghats of Chhattisgarh, the Mahanadi River flows solely through Chhattisgarh before draining into the Bay of Bengal.

<p>False (B)</p> Signup and view all the answers

The Godavari River, known as the 'Dakshin Ganga', originates in the Brahmagiri Hills of the Western Ghats in Tamil Nadu.

<p>False (B)</p> Signup and view all the answers

The Narmada River, flowing through Madhya Pradesh and Gujarat, drains into the Bay of Bengal via an estuary.

<p>False (B)</p> Signup and view all the answers

Rivers originating from glaciers in the Himalayas are called ______ Rivers.

<p>Himalayan</p> Signup and view all the answers

The river ______ originates in Tibet and flows through Ladakh.

<p>Indus</p> Signup and view all the answers

River Bhagirathi originates from the ______ glacier.

<p>Gangotri</p> Signup and view all the answers

The longest river in India is the River ______.

<p>Ganga</p> Signup and view all the answers

The Yamuna River joins the Ganga at ______.

<p>Prayagraj</p> Signup and view all the answers

In Tibet, the Brahmaputra River is called ______.

<p>Tangpo</p> Signup and view all the answers

The world’s largest river island, Majuli, is formed by the River ______.

<p>Brahmaputra</p> Signup and view all the answers

River Mahanadi originates from the Eastern Ghats in ______.

<p>Chhattisgarh</p> Signup and view all the answers

River Godavari is also known as ______ Ganga.

<p>Dakshin</p> Signup and view all the answers

River ______ originates from the Western Ghats in Karnataka.

<p>Kaveri</p> Signup and view all the answers

The ______ and its tributaries flow through Uttarakhand, forming a crucial water source for the region.

<p>Ganga</p> Signup and view all the answers

The River Yamuna originates from the ______ glacier in the Himalayas.

<p>Yamunotri</p> Signup and view all the answers

In Tibet, the Brahmaputra River is known as ______.

<p>Tangpo</p> Signup and view all the answers

The Brahmaputra River forms the world’s largest river island, ______, in Assam.

<p>Majuli</p> Signup and view all the answers

The ______ River is also known as Dakshin Ganga.

<p>Godavari</p> Signup and view all the answers

River Narmada drains into the ______ Sea through an estuary.

<p>Arabian</p> Signup and view all the answers

River ______ originates from the Gangotri glacier in the Himalayas.

<p>Bhagirathi</p> Signup and view all the answers

The Dhola-Sadiya Bridge is built over the ______ river.

<p>Lohit</p> Signup and view all the answers

River ______ forms a large delta on the Tamil Nadu coast before draining into the Bay of Bengal.

<p>Kaveri</p> Signup and view all the answers

What is a common source of water for Himalayan rivers throughout the year?

<p>Melting snow/glaciers</p> Signup and view all the answers

In which country does the Indus River originate?

<p>Tibet</p> Signup and view all the answers

From which glacier does the River Bhagirathi, which forms the Ganga, originate?

<p>Gangotri Glacier</p> Signup and view all the answers

Which river is the main tributary of the Ganga River?

<p>Yamuna River</p> Signup and view all the answers

In which country is the Brahmaputra known as the Jamuna?

<p>Bangladesh</p> Signup and view all the answers

What is the name of the river island formed by the Brahmaputra in Assam?

<p>Majuli</p> Signup and view all the answers

From which mountain range does the Narmada River originate?

<p>Maikala Range</p> Signup and view all the answers

Name one use of river water mentioned.

<p>Irrigation / Transportation / washing / cleaning / cooking / bathing / drinking / generate electricity</p> Signup and view all the answers

Which river is also known as 'Dakshin Ganga'?

<p>Godavari</p> Signup and view all the answers

Explain why Himalayan rivers are considered perennial. What are the two primary sources that contribute to their continuous flow?

<p>Himalayan rivers are perennial because they receive water from both the melting of glaciers and rainfall, ensuring a continuous flow throughout the year.</p> Signup and view all the answers

Describe the journey of the Ganga River, starting from its origin. Include the names of the major tributaries and the significant geographical feature it forms at its end point.

<p>The Ganga originates from the Gangotri glacier as the Bhagirathi River. It joins the Alaknanda at Devprayag to form the Ganga. The Yamuna is a major tributary. In West Bengal, it splits into distributaries, with one branch (Hugli) draining into the Bay of Bengal.</p> Signup and view all the answers

The Brahmaputra River is known by different names as it flows through different regions. What are these names and in which regions are they used?

<p>The Brahmaputra is called Tangpo in Tibet, Dihang in Arunachal Pradesh, Brahmaputra in Assam, and Jamuna in Bangladesh.</p> Signup and view all the answers

Compare and contrast the origin and drainage of the Narmada River with that of the Ganga River.

<p>The Narmada originates in the Maikala Range and drains into the Arabian Sea through an estuary, whereas the Ganga originates in the Himalayas and drains into the Bay of Bengal, highlighting different drainage patterns and geographical sources.</p> Signup and view all the answers

How do rivers contribute to both agriculture and transportation in India? Provide specific examples from the text.

<p>Rivers provide water for irrigation, supporting agriculture. They also serve as a cheap mode of transportation. (No specific examples are given in the text).</p> Signup and view all the answers

Describe the significance of the Dhola-Sadiya Bridge (Dr. Bhupen Hazarika Setu). Which river is it built over, and which regions does it connect?

<p>The Dhola-Sadiya Bridge, or Dr. Bhupen Hazarika Setu, is the longest river bridge in India. It is built over the Lohit River, a tributary of the Brahmaputra, and connects Assam and Arunachal Pradesh.</p> Signup and view all the answers

Explain the importance of the River Godavari. What is its nickname, and why is it referred to that way?

<p>River Godavari is the second-longest river in India and is known as Dakshin Ganga. It is referred to as such due to its large size and extensive drainage basin in southern India, similar to the Ganga's importance in the north.</p> Signup and view all the answers

Contrast the drainage patterns of the Indus River and the Brahmaputra River, mentioning the water bodies they eventually drain into.

<p>The Indus River drains into the Arabian Sea after flowing through India and Pakistan, while the Brahmaputra River flows into Bangladesh and eventually drains into the Bay of Bengal.</p> Signup and view all the answers

How do the Mahanadi, Krishna, and Kaveri rivers contribute to the coastal geography of India?

<p>The Mahanadi, Krishna and Kaveri rivers each form large deltas on the coasts of Odisha, Andhra Pradesh and Tamil Nadu respectively before draining into the Bay of Bengal.</p> Signup and view all the answers

Describe the unique geographical feature formed by the Brahmaputra River in Assam. What is it called, and why is it significant?

<p>The Brahmaputra River forms Majuli, the world’s largest river island, in Assam. It is significant for its unique ecosystem and cultural importance.</p> Signup and view all the answers

Explain why Himalayan rivers are classified as perennial. What are the two primary sources that contribute to their continuous flow?

<p>Himalayan rivers are perennial because they receive water from both the melting of snow (glaciers) and rainfall throughout the year.</p> Signup and view all the answers

The Ganga River splits into distributaries in West Bengal. Name the two distributaries and bodies of water they drain into.

<p>The Ganga River's two distributaries are the Hugli River, which flows through West Bengal and drains into the Bay of Bengal, and the Padma, which flows into Bangladesh and joins the Brahmaputra River.</p> Signup and view all the answers

Compare and contrast the Indus and Brahmaputra rivers in terms of their origin and the countries through which they flow.

<p>Both originate in Tibet. The Indus flows through India (Ladakh) and Pakistan, draining into the Arabian Sea. The Brahmaputra flows through India(Arunachal Pradesh and Assam) and Bangladesh.</p> Signup and view all the answers

The Brahmaputra River is known by different names in different regions. What are these names and where are they used?

<p>The Brahmaputra is called Tangpo in Tibet, Dihang in Arunachal Pradesh, Brahmaputra in Assam, and Jamuna in Bangladesh.</p> Signup and view all the answers

Describe the significance of the confluence of the Bhagirathi and Alaknanda rivers at Devprayag. What river does it form?

<p>The confluence of the Bhagirathi and Alaknanda rivers at Devprayag is significant because it's the point where they merge to form the Ganga River.</p> Signup and view all the answers

Identify two ways rivers in India support its economy. Be specific in your examples.

<p>Rivers support the Indian economy by providing water for irrigation (agriculture) and serving as a mode of transportation for goods and people.</p> Signup and view all the answers

The Godavari River is referred to as 'Dakshin Ganga'. What is the primary reason for this designation?

<p>The Godavari River is called 'Dakshin Ganga' because it is the second-longest river in India.</p> Signup and view all the answers

Compare the origin of the Narmada River with that of the Godavari River. In which mountain ranges do they originate?

<p>The Narmada originates in the Maikala Range, while the Godavari originates in the Brahmagiri Hills of the Western Ghats.</p> Signup and view all the answers

The Dhola-Sadiya Bridge is built over a tributary of the Brahmaputra. Name the tributary and the two states it connects.

<p>The Dhola-Sadiya Bridge is built over the Lohit River, a tributary of the Brahmaputra, and it connects Assam and Arunachal Pradesh.</p> Signup and view all the answers

Describe the journey of the Yamuna River from its origin to its final destination. Include the names of important states it flows through and the river it eventually joins.

<p>The Yamuna originates from the Yamunotri Glacier, flows through Uttarakhand, Himachal Pradesh, Haryana, Delhi, and Uttar Pradesh, and joins the Ganga at Prayagraj.</p> Signup and view all the answers

Flashcards

Himalayan Rivers

Rivers originating from glaciers in the Himalayas, fed by melting snow and rain, providing year-round water flow.

Perennial River

A river that has a continuous flow of water throughout the year.

Indus River

Originates in Tibet, flows through Ladakh (India) and Pakistan, and drains into the Arabian Sea; Zanskar is a key tributary in Ladakh.

Ganga River

Originates from the Gangotri glacier, merges with Alaknanda at Devprayag, is the longest river in India, with Yamuna as its main tributary.

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Yamuna River

Originates from the Yamunotri Glacier, flows through multiple states, and joins the Ganga at Prayagraj; Chambal and Betwa are key tributaries.

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Brahmaputra River

Originates in Tibet (as Tangpo), enters India through Arunachal Pradesh (as Dihang), flows through Assam (as Brahmaputra) and Bangladesh (as Jamuna).

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Majuli Island

The world’s largest river island, located on the Brahmaputra River in Assam.

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Mahanadi River

Originates from the Eastern Ghats in Chhattisgarh, flows through Chhattisgarh and Odisha, and forms a delta at the Odisha coast before draining into the Bay of Bengal.

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Godavari River

Originates in the Brahmagiri Hills (Western Ghats, Maharashtra), flows through multiple states, and is also known as 'Dakshin Ganga'.

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Krishna River

Originates from the Western Ghats in Maharashtra, flows through multiple states, and forms a delta on the Andhra Pradesh coast before draining into the Bay of Bengal.

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Kaveri River

Originates from the Western Ghats in Karnataka, flows through Karnataka and Tamil Nadu, and forms a delta on the Tamil Nadu coast before draining into the Bay of Bengal.

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Narmada River

Originates in the Maikala Range in Madhya Pradesh, flows through Madhya Pradesh and Gujarat, and drains into the Arabian Sea through an estuary.

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Glacial Stream

A small stream formed when a glacier melts below the snow line.

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Distributary

A river that branches off from the main river channel.

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Tributary

A river or stream flowing into a larger river or lake.

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Devprayag

The point where River Bhagirathi and River Alaknanda merge to form Ganga.

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Dhola-Sadiya Bridge

Longest river bridge in India, built over Lohit river which is a tributary of Brahmaputra, connecting Assam and Arunachal Pradesh.

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Estuary

A coastal body of water where freshwater from rivers mixes with saltwater from the ocean.

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Ganga's Split in West Bengal

The point where the Ganga splits into two branches in West Bengal; one branch enters Bangladesh and is called Padma, the other flows through West Bengal and is called Hugli.

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Mahanadi River's Path

A river that flows through Chhattisgarh and Odisha and forms a large delta on the Odisha coast before draining into the Bay of Bengal.

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River Transportation

A cheap way of moving goods and people that uses rivers.

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River Irrigation

Using river water to supply water to farm fields.

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River Electricity Generation

The conversion of the energy of flowing water into electricity.

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Hugli River

A river in West Bengal that forms when the Ganga splits into distributaries and drains into the Bay of Bengal.

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River Island Formation

River islands formed by the deposition of sediments in a river channel

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River Mouth

The point where a river meets a sea or ocean.

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Study Notes

  • Rivers act as a crucial source of freshwater in India.
  • Indian rivers are categorized into two types, determined by their origin.

Himalayan Rivers

  • These rivers originate from Himalayan glaciers.
  • They are fed by both melting snow and rainfall.
  • Rivers of this type carry water all year long.
  • Known as perennial rivers due to their year-round water flow.
  • Examples include the Indus, Ganga, Yamuna, and Brahmaputra.
  • Small streams form from glacial melt below the snow line.
  • These streams merge to create a Himalayan river.

Indus

  • Originates in Tibet.
  • Its path goes through Ladakh in India, and Pakistan.
  • Empties into the Arabian Sea.
  • The Zanskar River is a major tributary in Ladakh.

Ganga

  • The Bhagirathi River starts at the Gangotri glacier in the Himalayas.
  • It merges with the Alaknanda River at Devprayag, forming the Ganga.
  • Ganga is the longest river in India.
  • The Yamuna is its main tributary.
  • The Ganga and its tributaries travel through Uttarakhand and West Bengal.
  • In West Bengal, the river divides into two distributaries.
  • These branches are called distributaries.
  • One distributary enters Bangladesh, called Padma, and joins the Brahmaputra.
  • The other distributary, the Hugli River, flows through West Bengal and empties into the Bay of Bengal.
  • The Dhola-Sadiya Bridge, or Dr. Bhupen Hazarika Setu, is India's longest river bridge.
  • It spans the Lohit River, a Brahmaputra tributary, connecting Assam and Arunachal Pradesh.

Yamuna

  • It starts at the Yamunotri glacier in the Himalayas.
  • It flows through Uttarakhand, Himachal Pradesh, Haryana, Delhi, and Uttar Pradesh.
  • Joins the Ganga at Prayagraj.
  • The Chambal and Betwa rivers are its tributaries.

Brahmaputra

  • Begins in Tibet, called the Tangpo there.
  • Enters India via Arunachal Pradesh and flows through Assam before entering Bangladesh.
  • Called Dihang in Arunachal Pradesh, Brahmaputra in Assam, and Jamuna in Bangladesh.
  • The Brahmaputra has created Majuli, the world’s largest river island, in Assam.

Mahanadi

  • Originates from the Eastern Ghats in Chhattisgarh.
  • Flows through Chhattisgarh and Odisha.
  • A large delta forms on the Odisha coast before it empties into the Bay of Bengal.

Godavari

  • Begins in the Brahmagiri Hills in the Western Ghats of Maharashtra.
  • It is India's second-longest river, also known as Dakshin Ganga.
  • Flows through Maharashtra, Telangana, and Andhra Pradesh.
  • Forms a large delta on the Andhra Pradesh coast before draining into the Bay of Bengal.
  • The Manjira is a key tributary.

Krishna

  • Starts in the Western Ghats in Maharashtra.
  • Travels through Maharashtra, Karnataka, Telangana, and Andhra Pradesh.
  • A large delta forms on the Andhra Pradesh coast before it empties into the Bay of Bengal.
  • The Tungabhadra and Bhima rivers are important tributaries.

Kaveri

  • Originates in the Western Ghats in Karnataka.
  • Flows through Karnataka and Tamil Nadu.
  • A large delta forms on the Tamil Nadu coast before it empties into the Bay of Bengal.
  • The Bhavani is a tributary.

Narmada

  • Begins in the Maikala Range in Madhya Pradesh.
  • Flows through Madhya Pradesh and Gujarat.
  • Empties into the Arabian Sea through an estuary.
  • The Kolar river is a tributary.

River Importance

  • Rivers supply water for drinking, bathing, and cooking.
  • Water is also drawn from rivers for washing and cleaning.
  • River water is also used to irrigate fields and produce electricity.
  • Rivers facilitate easy and affordable transportation.
  • Rivers are the lifeline of India.
  • Rivers also provide water for washing clothes and cleaning things.

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