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In deep sea, more regular waves with rounded wave crests are called ............... waves.

  • A.Seiches
  • B.Swell
  • C.Clapotis
  • D.Tidal

Answer: B

Regular deep-sea waves with rounded crests are swell.

Waves generated by wind in a storm area are short and choppy. As they travel away from where they formed, the shorter waves die out and the longer ones sort themselves into a regular train of long, low waves with rounded crests, known as swell, which can cross whole oceans.

A seiche is a standing oscillation of the water in an enclosed basin such as a lake or bay. A clapotis is a standing wave formed when waves are reflected from a vertical wall. Tidal waves are the tides, caused by the moon and sun, not regular wind waves.

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