Question

Write a note on the work of sea-waves.

Answer 1

Explanation:

The work of sea water is performed by several marine agents like sea waves, oceanic currents, tidal waves and tsunamis but the sea waves are most pow­erful and effective erosive agent of coastal areas. Sea waves are defined as undulations of sea water charac­terized by well-developed crests and troughs (fig. 20.1). The mechanism of the origin of sea waves is not precisely known but it is commonly believed that waves are generated due to friction on water surface caused by blowing winds.

The undulations of sea water at the place of their origin are called swells which are low, broad, regular and rounded ridges and troughs of water. In other words, ‘the regular pattern of smooth, rounded waves that characterizes the surface of the ocean during fair weather is called swell’.

Answer 2

Answer:

Waves are created by energy passing through water

Explanation:

and Sea waves  are caused by winds which blow over the sea