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Hollows worn by sea waves into a rocky coast become:

ASea beds
BSea lanes
CSea caves
DSea walls
Answer & Solution
Correct answer: C. Sea caves
1. Waves widen cracks in coastal rock. 2. The cracks grow into hollows. 3. Those hollows are sea caves. _Source: syllabus Our Environment, Class VII, Chapter 3, Our Changing Earth._
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