Indian Rivers and Waterways

Kevat (also known as Guha or Nishadraj) was the boatman who ferried Rama, Sita, and Lakshmana across the Ganges river when they left Ayodhya to begin their 14-year exile.

The Sabari river is a tributary of the Godavari river in India. It flows through the states of Chhattisgarh, Odisha, and Andhra Pradesh before joining the Godavari. The Godavari is one of India's major peninsular rivers.

Chambal is a north-flowing river that originates in Madhya Pradesh and joins the Yamuna River in Uttar Pradesh. Among the options, Mahanadi and Periyar flow east, while Sabarmati flows west. Chambal's northward trajectory makes it the correct answer.

The Amazon River and its tributaries in South America are home to the largest population of piranhas in the world. The Amazon basin provides the ideal warm, freshwater habitat that piranhas require. While piranhas exist in other South American rivers, the Amazon has by far the largest concentration.

Tehri Dam is the highest dam in India, located in Uttarakhand on the Bhagirathi River with a height of 260.5 meters. Kishau is proposed but unbuilt, Bhakra is a major dam but not the highest, and Dharoi is in Gujarat.

According to the Ramayana, after completing his earthly duties, Rama ended his life by walking into the Sarayu river and departing for his heavenly abode. This event is known as Rama's 'Jalasamadhi' or final departure. The Sarayu river flows beside Ayodhya, Rama's capital city. Options A, B, and C are other major Indian rivers but not where Rama's life ended.

Omkareshwar Jyotirlinga is situated on the Mandhata island in the Narmada River, Madhya Pradesh. It is one of the 12 sacred Jyotirlingas dedicated to Lord Shiva. Trymbakeshwar is near Nashik (Godavari origin), Gushmeshwar is near Ellora, and Mahakaleshwar is in Ujjain.

The Ganga forms a famous estuary known as the Sundarbans, where it meets the Bay of Bengal. An estuary is a partially enclosed coastal body where freshwater from rivers mixes with saltwater from the ocean. While other major Indian rivers like Kaveri, Krishna, and Narmada also have deltas or mouths, the Ganga-Brahmaputra estuary system is the most significant and well-known.

The Ganga (Ganges) is considered India's national river, though this designation stems from a 2009 government announcement rather than a constitutional declaration. The Ganga holds sacred status in Hinduism and is central to Indian civilization.

The Ganga was officially declared India's national river in 2008, recognizing its immense cultural, religious, and economic significance. It is considered sacred in Hinduism and supports millions of people.

The Ganga (Ganges) was declared the National River of India in 2008 by the Prime Minister to help achieve the objectives of the Ganga Action Plan. Yamuna, Cauvery, and Krishna are major rivers but do not hold the 'National River' status.

The Volga River, the longest river in Europe, flows through central Russia and empties into the Caspian Sea. Note that option A has a typo ('caspian' should be 'Caspian'), but it is clearly the intended correct answer.

The Niagara River connects Lake Erie to Lake Ontario, flowing northward over Niagara Falls. It's a major natural waterway connecting these two Great Lakes. The Colorado, Potomac, and Missouri rivers are unrelated to the Great Lakes system.