Q. 54.3( 19 Votes )

Complete the following table by classifying the landforms according to their agents of erosion.(waterfall, delta, cirque, arête, barchans, moraine, pothole, mushroom rock,sinkholes, beach, pillars, lagoons)

Answer :


Beach: Land between two headlands. Because of the headlands, coast is somewhat protected from the onslaught of the waves. Waves coming to the coast undergo refraction continuously because of this refraction, waves converge at the headlands. Beaches are generally concave to the sea.

Lagoons: Lagoons are commonly divided into coastal lagoons and atoll lagoons. Both the types of lagoon lakes are shallow and are separated from the main sea. Tides have no influence over them. Waves are also not very high.

Delta: Landform formed due to the depositional work of rivers at its mouth. In the lower course of the river, the flow of the river is very slow but the volume of water has increased.

Waterfall: The rivers which originate at a much higher altitude from the sea level is called as waterfall

Barchan: A crescent shaped sand dune. The convex side of this dune is the windward side, while the concave side is opposite the flow of the wind.

Mushroom Rock: Landform formed due to erosional work of wind.

Sinkhole: A landform produced mainly in limestone region due to erosion. Limestone, contains soluble materials in greater amounts. Such materials dissolve in water and are carried away by water.

Pillars: Pillars formed from alkaline deposits in the caves in limestone areas. Salts brought by flowing groundwater deposit in the caves when water evaporates

Cirque: Landforms produced due to erosional work of glaciers.The landforms are produced in the areas where the glaciers originate.

Moraine: The glaciers which carry sediments with them are called as moraines

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