Rivers Quiz

Notes:
The correct answer is [D] Sutlej. This question refers to the specific geographical convergence of the “Panjnad” (five rivers) before they meet the Indus River in Pakistan.

• The Convergence Process: The Jhelum and Ravi rivers both flow into the Chenab. The Chenab then carries their combined waters and eventually meets the Sutlej at Panjnad, near Mithankot.
• Sutlej (Statement D – Correct): After receiving the combined flow of the other four rivers (Jhelum, Chenab, Ravi, and Beas), the Sutlej is the final collective stream that joins the Indus River directly.
• Chenab (Statement A – Incorrect): While the Chenab is the largest tributary of the Indus in terms of volume and receives the Jhelum and Ravi, it merges into the Sutlej at Panjnad before the final confluence with the Indus.
• Jhelum and Ravi (Statements B & C – Incorrect): These are secondary tributaries in this context. The Jhelum joins the Chenab at Trimmu, and the Ravi joins the Chenab further downstream. Neither reaches the Indus independently.

The Indus River system is governed by the Indus Waters Treaty (1960), which allocates the waters of the “Eastern Rivers” (Sutlej, Beas, Ravi) to India and the “Western Rivers” (Indus, Jhelum, Chenab) to Pakistan, subject to specific usage rights.

Notes:
The correct answer is [B] 2 and 4. This question tests the specific geographical origins of peninsular rivers in India, distinguishing between those rising in the Chota Nagpur Plateau and those in the Eastern Ghats.

• Nagavali (Statement 2 – Correct): Also known as the Langulya, this river rises in the Eastern Ghats near Lakhbahal in the Kalahandi district of Odisha. it flows through Odisha and Andhra Pradesh before draining into the Bay of Bengal.
• Vamsadhara (Statement 4 – Correct): This river originates in the Eastern Ghats in the Kalahandi district of Odisha. It is an important east-flowing river that runs between the Rushikulya and Godavari basins.
• Brahmani (Statement 1 – Incorrect): The Brahmani is formed by the confluence of the South Koel and Sankh rivers near Rourkela. These headwaters originate in the Chota Nagpur Plateau (Jharkhand), not the Eastern Ghats.
• Subarnarekha (Statement 3 – Incorrect): This river rises in the Chota Nagpur Plateau near Ranchi in Jharkhand. It flows through Jharkhand, West Bengal, and Odisha before reaching the Bay of Bengal.

The Eastern Ghats are a discontinuous range of mountains along India’s eastern coast. While major rivers like the Godavari and Krishna cut through them, smaller rivers like the Nagavali, Vamsadhara, and Rushikulya actually originate within these hill ranges.

Notes:
The correct answer is [B] 2 only. Statement 1 (Incorrect):
The amount of water in rivers and lakes is far less than the amount of
groundwater. Groundwater accounts for approximately 30.1% of Earth’s
freshwater, whereas all surface freshwater (lakes, rivers, and swamps combined)
makes up only about 1.2%. In particular, rivers contain an extremely
small fraction—about 0.0002% of total water. Statement 2 (Correct):
The amount of water in polar ice caps and glaciers is greater than that
in groundwater. Glaciers and ice caps hold the largest share of Earth’s
freshwater, roughly 68.7%, compared to 30.1% in groundwater.

Source	Percentage of Freshwater
Glaciers and Ice Caps	~68.7%
Groundwater	~30.1%
Surface Water & Other	~1.2%
└─ Lakes	~0.26%
└─ Rivers	~0.006%

Since about 97% of Earth’s total water is saline
(in oceans), these figures refer only to the remaining 3% that is
freshwater. Within this freshwater, the order from largest to smallest
storage is:

Ice caps/Glaciers > Groundwater > Lakes >
Soil Moisture > Atmosphere > Rivers.

Notes:
The pairs 1, 2, and 3 are correctly matched: Kabini forms the boundary of Nagarhole; Bhadra flows through Bhadra Wildlife Sanctuary; Kali bisects Anshi (now Kali Tiger Reserve). The fourth pair is incorrect as the Cauvery River flows through Cauvery Wildlife Sanctuary, not Brahmagiri Wildlife Sanctuary, which is the origin of the Laxman Tirtha tributary.

Notes:
Karnataka’s water wealth shows significant geographical disparities. The West-flowing rivers, including Sharavathi, Kali, and Netravati, though occupying only about 13.68% of the land area, contribute nearly 58.3% of the state’s surface water. This concentration of water resources in a small part of the state explains the pronounced disparities in water distribution across Karnataka.

Notes:
The west-flowing rivers in Karnataka from north to south follow this sequence: Kali originates near Bidi village and flows into the Arabian Sea near Karwar (northernmost). Bedti (Gangavali) starts south of Dharwad, south of Kali. Sharavathi, known for Jog Falls, originates at Ambuthirtha and flows south of Bedti. Udyavara is a smaller river flowing through Udupi district, south of Sharavathi. Netravati originates in the Western Ghats, flowing through Dakshina Kannada, and meets the Arabian Sea near Mangaluru (southernmost). Hence, correct north to south order is Kali, Bedti, Sharavathi, Udyavara, Netravati.

Notes:
The Kalasa-Banduri Nala project involves diverting water from the Kalasa and Banduri canals, which are tributaries of the Mahadayi river, into the Malaprabha river. This aims to meet the drinking water needs of Belagavi, Dharwad, and Gadag districts in North Karnataka, making rivers 1 (Mahadayi) and 2 (Malaprabha) the correct ones involved in the project.

Notes:
The correct answer is [B] Godavari and Krishna. This project is a landmark achievement in India’s inter-state river-linking program, aimed at diverting surplus water to water-deficit regions.

• Pattiseema Lift Irrigation Project: The linking was formally achieved through the Pattiseema project in Andhra Pradesh. It diverts surplus water from the Godavari River to the Krishna River to meet the irrigation and drinking water needs of the Rayalaseema region and the Krishna delta.
• Godavari and Krishna (Correct): The project involves a lift irrigation scheme that pumps water from the Godavari at Pattiseema and discharges it into the Polavaram Right Main Canal, which eventually carries it to the Prakasam Barrage on the Krishna River at Vijayawada.
• National Perspective Plan: The inter-linking of rivers (ILR) is managed by the National Water Development Agency (NWDA) under the Ministry of Jal Shakti. The Godavari-Krishna link is one of the 30 planned links (14 Himalayan and 16 Peninsular) under this massive infrastructure initiative.
• Other Rivers (Incorrect): While there are proposals for linking other rivers—such as the Ken-Betwa link (the first project under the National Perspective Plan) or the Damanganga-Pinjal link—the Godavari-Krishna link was the one successfully undertaken and operationalized recently in the context of this specific historical question.
• Benefits: The primary goal is to mitigate the “paradox of floods and droughts” by transferring water from “surplus” basins to “deficit” basins, thereby increasing the country’s total cultivable area.

Notes:
The correct answer is [D] 2 and 3 only.The Godavari is the largest river system in Peninsular India, often referred to as the Dakshina Ganga. Understanding its vast network of tributaries is essential for mapping the geography of the Deccan Plateau.Analysis of the Rivers:

• Vamsadhara (1 – Incorrect): This is an east-flowing river that originates in the Kalahandi district of Odisha and flows into the Bay of Bengal. It is an independent river and not a tributary of the Godavari.
• Indravati (2 – Correct): This is a major left-bank tributary of the Godavari. It originates in the Eastern Ghats (Odisha) and flows through the Bastar district of Chhattisgarh before joining the Godavari. It is famous for the Chitrakote Falls.
• Pranahita (3 – Correct): This is the largest tributary of the Godavari by volume. It is formed by the confluence of the Wardha, Penganga, and Wainganga rivers. It drains a significant portion of Vidarbha and Satpura regions before joining the Godavari at Kaleshwaram.
• Pennar (4 – Incorrect): This is another independent east-flowing river that originates in the Nandi Hills of Karnataka and flows through Andhra Pradesh into the Bay of Bengal. It lies to the south of the Krishna river basin and is not connected to the Godavari.

Major Tributaries of the Godavari:

Left Bank Tributaries	Right Bank Tributaries
Darna, Purna, Pranahita	Pravara
Indravati	Mula
Sabari	Manjira (Most important right bank)

The Godavari basin is bounded by the Satmala hills on the north, the Ajanta range and the Mahadeo hills on the south, and the Eastern Ghats on the east.

Notes:
The correct answer is [C] 1, 3 and 4 only. The Ganges River Dolphin (Platanista gangetica) is India’s National Aquatic Animal and faces several anthropogenic threats beyond active poaching.

• Construction of dams and barrages (Statement 1 – Correct): Physical barriers like dams and barrages fragment the dolphin populations, restricting their movement and reducing the gene pool. They also alter the river’s water flow and depth, which are critical for the dolphin’s survival as it prefers deep water pools.
• Getting trapped in fishing nets (Statement 3 – Correct): This is known as “bycatch.” Since these dolphins are mammals and need to surface for air, getting entangled in nylon gillnets often leads to drowning. This is one of the most significant causes of accidental mortality.
• Use of synthetic fertilizers (Statement 4 – Correct): Agricultural runoff containing pesticides and fertilizers enters the river system. These chemicals lead to bioaccumulation in the fish that dolphins eat and cause eutrophication, which depletes dissolved oxygen levels in the water, degrading the habitat.
• Increase in crocodile population (Statement 2 – Incorrect): There is no scientific evidence to suggest that crocodiles (like Gharials or Muggers) are a primary cause for the decline of dolphins. In fact, they often coexist in the same river ecosystems. The decline of the dolphin is almost entirely due to human-induced factors and habitat degradation.

Other major threats include noise pollution from ships (as these dolphins are blind and rely on echolocation) and the depletion of prey due to overfishing.