ESS
Grade-4
Easy

Question

A sea arch is formed when __________.

  1. Softer rock present under hard rock gets eroded
  2. Softer rock becomes stronger
  3. Hard rock collapses
  4. Hard rock present under soft rock gets eroded

hintHint:

When softer rock present beneath the hard rock gets eroded , sea arch is formed.

The correct answer is: Softer rock present under hard rock gets eroded


    • Sea arch is formed due to erosion by  waves.
    • When soft rock present beneath the hard rock gets eroded by waves , sea arch is formed. 
    • It is a natural opening eroded out of a cliff.

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