Question

Explain the erosional landforms formed by underground water.

Answer 1

Erosional Landforms due to Groundwater. Sinkholes and caves are erosional landformsformed due to the action of ground water.


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Answer 2

Answer:

Erosion:

• Most of erosion takes place due to the process of solution.
• Rain water mixes with carbon dioxide it dissolves and destroys the limestone.

Land Forms:

• Terra Rossa
• Lappies
• Sinkholes
• Caves

Terra Rossa:

• Deposition of red clay soil on the surface of the earth is due to the dissolution of limestone content in rocks.
• The redness of the soil is due to the presence of iron oxide.

Lappies:

• When the joints of limestone rocks are corrugated by ground water long furrows are formed and these are called Lappies.

Sinkhole:

• A funnel shaped depressions formed due to dissolution of limestone rock is called sinkholes.
• Their average depth ranges between three to nine metres.

Caves and Caverns:

• Caves and Caverns are subterranean features of karst topography.
• Caves and hollows that are formed by the dissolution of limestone rocks when carbon dioxide in air turns into carbonic acid after its reaction with water.
• They vary in size and shape and forms caves with irregular floors.