Question

Give a geographical reason:

Compared to all the agents, sea waves work ceaselessly.

Answer 1

Compared to all the agents, sea waves work ceaselessly because -

1. The movement of seawater carried out by waves is mainly responsible for marine erosion and deposition.
2. The sea waves are dashing on the coastline ceaselessly. The erosion in some parts and deposition in the adjoining parts take place simultaneously.
3. The beaches and sand bars are formed due to deposition but they are also eroded.
4. The erosive power of waves depends partly on the velocity of winds, as waves derive their energy from them, and partly on the distance of the open ocean over which they are blown.
5. Coastal erosion may be caused by hydraulic action, abrasion, impact, and corrosion, which work continuously.
6. Abrasion is the most effective form of erosion by waves. The softer rock along the coastline gets eroded first.