11. Which of the following rivers is a right-bank tributary of the Ganga, originating in the southern plateau and flowing through the Vindhyan terrain before joining the main river?
[A] Tons
[B] Gandak
[C] Kosi
[D] Ghaghara
Show Answer
Correct Answer: A [Tons]
Notes:
Tons originates in the southern plateau, flows through the Vindhyan range, and joins the Ganga as a right-bank tributary.
12. Consider the following rivers of Uttar Pradesh:
- Yamuna
- Ramganga
- Gandak
- Gomati
Which of the following is the correct sequence in which these rivers meet the Ganga from west to east?
[A] 1 – 2 – 3 – 4
[B] 2 – 1 – 4 – 3
[C] 2 – 1 – 3 – 4
[D] 1 – 2 – 4 – 3
Show Answer
Correct Answer: B [2 – 1 – 4 – 3]
Notes:The correct west-to-east order in which these rivers join the Ganga in Uttar Pradesh is:
- Ramganga (in western Uttar Pradesh)
- Yamuna (at Prayagraj)
- Gomati (near Ghazipur)
- Gandak (at the Bihar border)
Thus, Option 2 (2 – 1 – 4 – 3) is correct.
13. Consider the following statements about the rivers of Northern India:
- The Ganga is joined by more tributaries on its northern bank in Uttar Pradesh than on its southern bank.
- The Chambal, Betwa, and Ken rivers originate from the Himalayas.
- The Ganga changes its direction from south to southeast after entering the plains.
Which of the above statements is/are correct?
[A] Only 1 and 3
[B] Only 2 and 3
[C] Only 1 and 2
[D] All statements are correct
Show Answer
Correct Answer: A [Only 1 and 3]
Notes:
The correct answer is option 1. Statement 1 is correct as the Ganga receives more northern tributaries (such as Ghaghara, Gandak, Kosi) in Uttar Pradesh than southern ones. Statement 2 is incorrect; Chambal, Betwa, and Ken are all of plateau origin, not Himalayan. Statement 3 is correct as the Ganga shifts its flow from south to southeast after entering the plains at Haridwar.
14. Consider the following downstream order of rivers joining Alaknanda before the formation of the Ganga:
- Dhauli
- Nandakini
- Pindar
- Mandakini
- Bhagirathi
Which one of the following options correctly indicates the downstream sequence in which these rivers meet Alaknanda before the formation of the Ganga?
[A] Mandakini → Pindar → Nandakini → Bhagirathi
[B] Dhauli → Nandakini → Pindar → Mandakini
[C] Dhauli → Nandakini → Mandakini → Bhagirathi
[D] Vishnu Ganga → Pindar → Mandakini → Nandakini
Show Answer
Correct Answer: B [Dhauli → Nandakini → Pindar → Mandakini]
Notes:The correct downstream order of major tributaries joining Alaknanda is:
- Dhauli and Vishnu Ganga at Vishnu Prayag
- Nandakini at Nand Prayag
- Pindar at Karna Prayag
- Mandakini at Rudra Prayag
- Finally, Bhagirathi at Dev Prayag forms the Ganga.
This sequencing matches option 2.
15. The river referred to as ‘Shaligrami’ in Nepal and ‘Narayani’ in the plains is formed by the confluence of which two rivers?
[A] Koshi and Bagmati
[B] Seti and Budhi Gandaki
[C] Rapti and Bheri
[D] Kali Gandak and Trishulganga
Show Answer
Correct Answer: D [Kali Gandak and Trishulganga]
Notes:
Gandak river, known as Shaligrami in Nepal and Narayani in the plains, is formed by the confluence of Kali Gandak (from the west) and Trishulganga (from the east).
16. Consider the following rivers with reference to their contribution to the sedimentation of the Terai region in Uttar Pradesh:
- Ghaghara
- Rapti
- Sarda
- Chambal
Which of the above rivers significantly contribute to the sedimentation of the Terai region?
[A] Only 1, 2 and 4
[B] Only 1 and 4
[C] Only 2, 3 and 4
[D] Only 1, 2 and 3
Show Answer
Correct Answer: D [Only 1, 2 and 3]
Notes:
Ghaghara, Rapti, and Sarda are Himalayan rivers that carry heavy sediment loads and deposit them in the Terai region of Uttar Pradesh, leading to its characteristic marshy and alluvial terrain. Chambal, in contrast, originates in the Vindhya range and is known for creating ravines in western Uttar Pradesh, rather than contributing to Terai sedimentation.
17. Why is Bhabar soil, found near Himalayan rivers, generally unsuitable for agriculture?
[A] It contains high levels of clay, making plowing difficult.
[B] It frequently gets waterlogged due to poor drainage.
[C] It is extremely porous, causing water to drain quickly beyond plant root reach.
[D] It is highly acidic, affecting crop growth adversely.
Show Answer
Correct Answer: C [It is extremely porous, causing water to drain quickly beyond plant root reach.]
Notes:
Bhabar soil is coarse and porous, leading to rapid water percolation and lack of moisture retention for crops.
18. Consider the following rivers:
- Tons
- Hindon
- Betwa
- Chambal
Arrange the above rivers in the correct sequence in which they join the Yamuna from upstream to downstream:
[A] 1-3-4-2
[B] 4-1-3-2
[C] 1-2-3-4
[D] 1-4-3-2
Show Answer
Correct Answer: D [1-4-3-2]
Notes:The correct sequence is:
- Tons merges with the Yamuna first (in Uttarakhand).
- Chambal joins next (at Auraiya).
- Betwa merges further downstream (at Hamirpur).
- Finally, Hindon meets Yamuna near Noida.
This order reflects their north-to-south confluence points along the Yamuna's course.
19. Which of the following cities in Uttar Pradesh lies downstream of the confluence of the Sharda and Ghaghara rivers?
[A] Gonda
[B] Bahraich
[C] Ayodhya
[D] Sitapur
Show Answer
Correct Answer: C [Ayodhya]
Notes:
The Sharda joins the Ghaghara at Bharam Ghat in Sitapur; downstream, the Ghaghara flows through Ayodhya.
20. Which of the following cities is situated nearest to the confluence of the Gomati and Ganga rivers?
[A] Varanasi
[B] Jaunpur
[C] Ghazipur
[D] Ballia
Show Answer
Correct Answer: C [Ghazipur]
Notes:
The confluence at Kaithi village is located in Ghazipur district, making Ghazipur the closest city.
