BPSC CCE Prelims
Physical Geography of Bihar Previous Year Questions (PYQs)
Showing solved Previous Year Questions for Chapter: Physical Geography of Bihar
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Karmanasa river originates in -
Detailed Explanation:
Karmanasa River originates near Sarodag in Kaimur district of Bihar, from the Kaimur Hills (part of Vindhya Range).
It flows along the Bihar-Uttar Pradesh border and joins the Ganga River near Chausa in Buxar district.
Which river is known as the 'Sorrow of Bihar'?
Detailed Explanation:
The Kosi River is known as the 'Sorrow of Bihar' due to its frequent devastating floods and unpredictable course changes.
Originating in Tibet and flowing through Nepal into Bihar, the river carries heavy silt deposits that raise its riverbed, causing it to shift course and flood vast areas, displacing millions—the 2008 flood alone affected over 3 million people.
Munger Hilly region is a part of which of the following physiographic regions?
Detailed Explanation:
Munger Hilly region is located in the southern part of Bihar and forms a part of the Southern Hilly Region, which extends along the Chotanagpur Plateau margin.
Bihar's physiography is divided into three zones: North Bihar Plain (Gangetic alluvial), South Bihar Plain (older alluvial), and Southern Hilly Region (comprising Kaimur, Rohtas, Munger and other hill ranges).
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Which of the following drainage systems drains the lands of Bihar?
Detailed Explanation:
Ghagra River (also called Ghaghara or Karnali) is a major tributary of the Ganga that enters Bihar from Uttar Pradesh and drains the northwestern districts of the state before joining the Ganga near Chhapra.
Mahanadi drains Chhattisgarh and Odisha, Yamuna flows through northern states but does not enter Bihar, and Narmada flows westward through Madhya Pradesh and Gujarat—none of these three rivers drain Bihar's lands.
Phalgu, a sacred river flowing in Bihar, is formed by the confluence of which of the following rivers?
Detailed Explanation:
The Phalgu River (also known as Niranjana River) is a sacred river in Bihar, particularly significant for Gaya and Bodh Gaya.
It is formed by the confluence of the Mohana River (also called Mohar) and the Lilajan River near Tikari in Gaya district.
The river is known for being mostly dry on the surface with water flowing underground, making it a seasonal and ephemeral river.
Which is the first Ramsar Site in Bihar?
Detailed Explanation:
Kanwar Lake (Kabar Tal) in Begusarai district became Bihar's first Ramsar Site in August 2020, recognized as a wetland of international importance under the Ramsar Convention.
It is Asia's largest oxbow lake and a critical habitat for migratory birds. Kaimur Range and Rajgir Hill are terrestrial features, while Kharagpur Lake is not a designated Ramsar Site.
Therefore, Kanwar Lake is Bihar's first Ramsar Site, making Option 3 the correct answer.
Which agro climatic region of Bihar has the highest number of districts?
Detailed Explanation:
Bihar's agro-climatic zones are divided into three regions: North West Alluvial Plains (9 districts), North East Alluvial Plains (11 districts), and South Bihar Alluvial Plains (18 districts).
The North East region includes districts like Saharsa, Madhepura, Supaul, Araria, Kishanganj, Purnia, Katihar, Khagaria, Bhagalpur, Banka, and Munger—covering areas along the Kosi and Mahananda river basins.
Therefore, the North East agro-climatic region has the highest number of districts (11), making Option 1 the correct answer.
Which river is known as Sorrow of Bihar?
Detailed Explanation:
The Kosi River is called the 'Sorrow of Bihar' due to its frequent and devastating floods that destroy farmland and settlements. Originating from the Himalayas in Nepal, it carries massive sediment loads that cause the river to frequently change its course on the plains, making it highly unpredictable and destructive.
The river's braided channels and erratic behavior result in catastrophic flooding, turning fertile land into wasteland and causing immense human and economic loss in Bihar.
Therefore, Kosi is known as the Sorrow of Bihar, making Option 2 the correct answer.
In which district of Bihar, Telhar Kund Waterfall is located?
Detailed Explanation:
Telhar Kund Waterfall is located in Kaimur district of Bihar, situated on the Bhabua-Audhora Road in the Kaimur hills near the origin of the Durgavati River.
The waterfall lies within Kaimur district, which also houses Karkat Waterfall and Kaimur Wildlife Sanctuary. Though located near the Rohtas plateau (a geographical region), the administrative district is Kaimur, not Rohtas.
Therefore, Telhar Kund is in Kaimur district, making Option 2 the correct answer.
Which is the Asia's largest and freshwater oxbow lake in Bihar?
Detailed Explanation:
Kanwar Lake in Begusarai district, Bihar, is Asia's largest freshwater oxbow lake, covering 2,620 hectares. It is Bihar's only Ramsar wetland site (designated 21-07-2020) and serves as a critical stopover for migratory birds on the Central Asian Flyway.
An oxbow lake forms when a river meander is cut off, creating a crescent-shaped water body. Kanwar Lake supports 165 plant species and 394 animal species, including 221 bird species, making it ecologically significant.
Therefore, Kanwar Lake is the correct answer, making Option 1 correct.