Flat surface found at the foot of the sea cliffs are called as wave cut platform. It is also referred as Beach, shelf, terrace. and plain.

(i) Transverse Dunes are asymmetrical in shape.
(ii) They are formed by alternate slow and fast winds that blow from the same direction

Due to the river action, cylindrical holes are drilled vertically in the river bed with varying depth and diametre.

'V' shaped valleys, Gorges, Canyons, rapids, pot holes, spurs and waterfalls.

Granular disintegration takes place in crystalline rocks where the grains of the rocks become loose and fall out. This is due to the action of temperature & frost.

Flat surface found at the foot of the sea cliffs are called as wave cut platforms, wave cut platform is also referred as beach, shelf, terrace and plain.

Moraine:
(i) Landforms formed by the glacial deposits of valley (or) continental glaciers are termed as moraines.
(ii) They are of various shapes and sizes, like ground, terminal and lateral moraines, etc.
Drumlin: Drumlins are deposits of glacial moraines that resemble giant inverted teaspoons (or) half cut eggs.
Esker: Long narrow ridges composed of boulders gravel and sand deposited by streams of melting water which run parallel to a glacier are called eskers.

Biological weathering occurs due to the penetration and expansion of plant roofs, earth worms, burrowing animals (rabbits, rats) and same human activities.

(i) Weathering is the disintegration and decomposition of materials of the earth's crust by their exposure to atmosphere.
(ii) The nature and magnitude of weathering differs from place to place and region to region.

Some of the erosional landforms of sea waves are sea cliff, sea cave, arch, stack, beach, bar and spit and wave cut platform.
Sea Cave: Prolonged wave attack on the base of a cliff erodes rock materials, which result in the formation of caves.
Sea Arch: When two caves approach one another from either side of a headland and unite, they form an arch. e.g., Neil Island, Andaman and Nicobar.
Sea Stack: Further erosion by waves ultimately leads to the total collapse of the arch. The seaward portion of the headland will remain as a pillar of rock known as stack. Eg the Old man of Hoy in Scotland.
Sea Cliffs: Sea cliffs are steep rock faces formed when sea waves dash against them. The rocks get eroded to form steep vertical walls.
Wave Cut Platforms: Flat surface found at the foot of sea cliffs are called as wave-cut platforms. Wave cut platform is also referred as beach, shelf, terrace and plain.

Most erosion takes place due to the process of solution. When rain water mixes with carbondi- oxide and enters into a limestone region, it dissolves and destroys much of the limestone.
As a result, landforms such as Terra rossa, Lappies, sinkholes, swallow holes, dolines, uvalas, poljes, caves and caverns are formed. 
Terra Rossa (Italian term for Red soil): 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 oflimestone rocks are corrugated by groundwater, 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 and nine meters.
Caves and Caverns: Caves and caverns are subterranean features of karst topography. Caves are hollows that are formed by the dissolution of limestone rocks when carbon di oxide in air turns into carbonic acid after its reaction with water. They vary in size and shape. Caverns are the caves with irregular floors. e.g., Guptadham caves in Western Bihar.
All types of deposits in the caves and caverns are collectively called speleothems which
(i) includes travertines,
(ii) tufa,
(iii) dripstones.
Swallow Holes, Uvalas, Dolines, Poljis are other erossional Features of karst regions predominant in other parts of the world.

a)

b)

c)