indian drainage irrigation rivers & projects section 9 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (d)

Answer: (c)

The Padma is the name used in Bangladesh for a major transboundary river, known in India as the main distributary of the Ganges, the river system that originated in the western Himalayas.

The Padma enters Bangladesh from India near Chapai Nababganj. It meets the Jamuna near Aricha and retains its name, but finally meets with the Meghna near Chandpur and adopts the name 'Meghna' before flowing into the Bay of Bengal.

Answer: (d)

Sideways form of erosion is called lateral erosion. In lateral erosion, the river erodes away at its banks and widens the river channel. Together, vertical and lateral erosion create the distinctive V-shaped valley that is found in rivers in their upper course.

As the river gets closer to the sea, there is more lateral erosion than vertical erosion and the V flattens out into a much wider shape.

Answer: (a)

The Yarlung Tsangpo is a watercourse that originates at Tamlung Tso lake in western Tibet, southeast of Mount Kailash and Lake Mansarovar. It later forms the South Tibet Valley and Yarlung Tsangpo Grand Canyon, before passing through the state of Arunachal Pradesh, India, where it is known as the Dihang.

Downstream from Arunachal Pradesh, the river becomes wider and at this point is called the Brahmaputra River. From Assam (India) the river enters Bangladesh at Ramnabazar.

Answer: (d)

The Ganges Delta (also known as the Ganges– Brahmaputra Delta, or the Sunderbans Delta) is a river delta in the South Asia region of Bengal, consisting of Bangladesh and the state of West Bengal, India.

It is the world's largest delta and empties into the Bay of Bengal. It is also one of the most fertile regions in the world, thus earning the nickname The Green Delta. The delta stretches from the Hooghly River on the west to the Meghna River on the east.