Which of the following is formed by the deposition action of rivers?

Correct option is C

The correct answer is option (c) Delta.

Explanation

A delta is a landform that is formed by the deposition of sediment carried by a river as the flow velocity decreases upon entering standing water, such as an ocean, sea, or lake. Deltas are typically formed where rivers meet larger bodies of water, and they are often characterized by their triangular or fan-shaped appearance. The Ganges Delta (Sundarbans) and the Nile Delta are well-known examples of river deltas.

Information Booster

• Deltas are rich in nutrients, which makes them highly productive ecosystems that support diverse plant and animal life.

• Sediment deposition in a delta occurs over time, leading to the formation of floodplains, levees, and meanders.

• The formation of deltas is influenced by factors such as river discharge, tidal action, and the type of sediment carried by the river.

• Deltas provide significant economic benefits, such as fertile agricultural lands and important transportation routes.

Additional Knowledge

Explaining the other options:

1. Moraine: A moraine is a type of landform created by the deposition of debris (such as dirt and rocks) carried by a glacier. It is not related to river deposition but to glacial processes.

2. Loess: Loess is a type of fine, silt-sized sediment that is deposited by the wind, often in arid and semi-arid regions. It is not formed by rivers but by wind action.

3. Bhrigu: Bhrigu refers to a mythological or historical term, not a geological landform. It is unrelated to river deposition or any known geological processes.