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1. Which river system is the largest in India?
A. Brahmaputra River System
B. Ganga River System
C. Godavari River System
D. Narmada River System
Answer: B. Ganga River System
Explanation: The Ganga river system is the largest river basin in India, covering an area of over 8.6 lakh square kilometres.
2. The river Ganga originates from which glacier?
A. Gangotri Glacier
B. Yamunotri Glacier
C. Siachen Glacier
D. Pindari Glacier
Answer: A. Gangotri Glacier
Explanation: The river Ganga originates from the Gangotri Glacier in the Uttarkashi district of Uttarakhand.
3. The Indus river flows through which country before entering India?
A. Nepal
B. China (Tibet)
C. Bhutan
D. Myanmar
Answer: B. China (Tibet)
Explanation: The Indus river originates in the Kailash ranges of Tibet, China, and flows through the disputed territory of Kashmir before entering Pakistan.
4. Which river is called the 'Dakshin Ganga' (Ganga of the South)?
A. Krishna
B. Mahanadi
C. Godavari
D. Kaveri
Answer: C. Godavari
Explanation: The Godavari is the largest river in the peninsular region of India and is often referred to as the 'Dakshin Ganga'.
5. The Narmada river flows through a rift valley. Where does it ultimately drain?
A. Bay of Bengal
B. Arabian Sea
C. Indian Ocean
D. Gulf of Khambhat
Answer: D. Gulf of Khambhat
Explanation: The Narmada flows westwards into the Arabian Sea via the Gulf of Khambhat in Gujarat.
6. Which river forms the second largest delta in India?
A. Godavari
B. Mahanadi
C. Krishna
D. Kaveri
Answer: A. Godavari
Explanation: The Godavari river forms the second largest delta in India after the Ganga-Brahmaputra delta.
7. The Kaveri river originates in which mountain range?
A. Western Ghats
B. Eastern Ghats
C. Himalayas
D. Vindhya
Answer: A. Western Ghats
Explanation: The Kaveri river originates in the Brahmagiri range of the Western Ghats in Karnataka.
8. In which state does the Ganga river finally empty into the sea?
A. Odisha
B. West Bengal
C. Bihar
D. Uttar Pradesh
Answer: B. West Bengal
Explanation: The Ganga river flows into the Bay of Bengal through the Sundarbans delta in the state of West Bengal.
9. Which river has the largest river basin in the world?
A. Ganga
B. Amazon
C. Nile
D. Mississippi
Answer: B. Amazon
Explanation: The Amazon river has the largest river basin in the world, covering roughly 7 million square kilometres.
10. Which is the longest river in India?
A. Ganga
B. Godavari
C. Indus
D. Brahmaputra
Answer: C. Indus
Explanation: The Indus river is the longest river in the Indian subcontinent, though it flows mostly through Pakistan.
11. The Brahmaputra river is known by what name in Tibet?
A. Tsangpo
B. Jamuna
C. Siang
D. Dharla
Answer: A. Tsangpo
Explanation: The Brahmaputra river is known as the Tsangpo (or Yarlung Tsangpo) when it flows through Tibet.
12. The Mahanadi river rises in which state?
A. Odisha
B. Chhattisgarh
C. Madhya Pradesh
D. Maharashtra
Answer: B. Chhattisgarh
Explanation: The Mahanadi river rises in the highlands of Chhattisgarh and flows eastwards into the Bay of Bengal through Odisha.
13. The Narmada river flows through which major gorge in India?
A. Dhuandhar Falls
B. Bhedaghat
C. Marble Rocks
D. All of the above
Answer: D. All of the above
Explanation: The Narmada carves through stunning geological features like the Marble Rocks and Dhuandhar Falls near Jabalpur.
14. Which river is known as the 'Sorrow of Bengal'?
A. Ganga
B. Damodar
C. Brahmaputra
D. Hooghly
Answer: B. Damodar
Explanation: The Damodar river, which frequently floods the plains of West Bengal, is historically known as the 'Sorrow of Bengal'.
15. The 'Godavari' river is often referred to as the 'Ganga of the South'. Which other river is known as the 'Sorrow of Bihar'?
A. Kosi
B. Gandak
C. Ghaghara
D. Yamuna
Answer: A. Kosi
Explanation: The Kosi river, known for changing its course frequently and causing devastating floods, is called the 'Sorrow of Bihar'.
16. The Yamuna river is the longest tributary of which river?
A. Ganga
B. Brahmaputra
C. Indus
D. Godavari
Answer: A. Ganga
Explanation: The Yamuna, which originates from the Yamunotri glacier, is the longest and most prominent tributary of the Ganga river.
17. The Chambal river is a tributary of which river?
A. Ganga
B. Yamuna
C. Narmada
D. Krishna
Answer: B. Yamuna
Explanation: The Chambal river rises in Madhya Pradesh and is a major tributary of the Yamuna river.
18. The river Tapi flows into which sea?
A. Bay of Bengal
B. Arabian Sea
C. Red Sea
D. South China Sea
Answer: B. Arabian Sea
Explanation: The Tapi (or Tapti) is one of the major west-flowing rivers that drains into the Arabian Sea.
19. The Periyar river is the longest river in which Indian state?
A. Tamil Nadu
B. Karnataka
C. Kerala
D. Andhra Pradesh
Answer: C. Kerala
Explanation: The Periyar river, which flows through Kerala, is the longest river of the state.
20. The Krishna river originates from which mountain range?
A. Western Ghats
B. Eastern Ghats
C. Satpura
D. Himalayas
Answer: A. Western Ghats
Explanation: The Krishna river, a major peninsular river, originates near Mahabaleshwar in the Western Ghats.
21. The Himalayan rivers are perennial in nature. What does this mean?
A. They dry up in summer
B. They are fed by melting snow and glaciers year-round
C. They flow only during monsoon
D. They flow only during winter
Answer: B. They are fed by melting snow and glaciers year-round
Explanation: Perennial rivers have a continuous flow throughout the year because they are fed by both monsoon rains and melting glacial ice.
22. The largest freshwater lake in India is which lake?
A. Chilika Lake
B. Wular Lake
C. Dal Lake
D. Kolleru Lake
Answer: B. Wular Lake
Explanation: Wular Lake, located in Jammu and Kashmir, is the largest freshwater lake in India.
23. The Chilika Lake is the largest brackish water lake in India. Where is it situated?
A. Andhra Pradesh
B. Odisha
C. Tamil Nadu
D. Kerala
Answer: B. Odisha
Explanation: Chilika Lake is a prominent brackish water lake (mixed salt and fresh water) located in the state of Odisha.
24. The Narmada and Tapi rivers are exceptions because they flow in which direction?
A. Westwards into the Arabian Sea
B. Eastwards into the Bay of Bengal
C. Northwards into the Himalayas
D. Southwards into the Indian Ocean
Answer: A. Westwards into the Arabian Sea
Explanation: Most peninsular rivers flow east into the Bay of Bengal, but Narmada and Tapi are the only major exceptions that flow west into the Arabian Sea.
25. Which river is the main tributary of the Brahmaputra river in India?
A. Subansiri
B. Manas
C. Dhansiri
D. All of the above
Answer: D. All of the above
Explanation: The Brahmaputra has several major tributaries in India, including the Subansiri, Manas, Dhansiri, and Tista.
26. Which lake is located in the state of Rajasthan and is a saline water lake?
A. Wular Lake
B. Chilika Lake
C. Sambhar Lake
D. Dal Lake
Answer: C. Sambhar Lake
Explanation: Sambhar Lake is a large saline (salt) water lake located in Rajasthan, famous for salt production.
27. The famous 'Dal Lake' is located in which city of India?
A. Srinagar
B. Jammu
C. Manali
D. Nainital
Answer: A. Srinagar
Explanation: Dal Lake, known for its floating gardens and houseboats, is located in the city of Srinagar, Jammu and Kashmir.
28. Which of the following rivers does NOT flow into the Bay of Bengal?
A. Godavari
B. Krishna
C. Narmada
D. Mahanadi
Answer: C. Narmada
Explanation: The Narmada river flows westwards into the Arabian Sea, unlike Godavari, Krishna, and Mahanadi, which flow eastwards into the Bay of Bengal.
29. What is the term for the drainage pattern where rivers originate from a central highland and flow in all directions?
A. Dendritic pattern
B. Radial pattern
C. Trellis pattern
D. Rectangular pattern
Answer: B. Radial pattern
Explanation: In a radial drainage pattern, rivers originate from a central elevated region and drain in all directions outwards.
30. Which of the following is a major tributary of the Ganga river in its lower reaches?
A. Yamuna
B. Son
C. Ghaghara
D. All of the above
Answer: D. All of the above
Explanation: The Ganga has multiple large tributaries in its lower reaches, including the Yamuna, Son, Ghaghara, Gandak, and Kosi.
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