Q. Stacks are formed by
✅ Correct Answer: (D)
Wave erosion
Explanation:
Stacks are vertical columns of rock found near coastlines.
- They are formed by the erosion of cliffs by sea waves (wave erosion).
- Over time, waves erode parts of the cliff, forming caves, which may collapse leaving isolated stacks.
So, stacks are formed by wave erosion — option (D).
Explanation by: Mr. Dubey
Stacks are vertical columns of rock found near coastlines.
- They are formed by the erosion of cliffs by sea waves (wave erosion).
- Over time, waves erode parts of the cliff, forming caves, which may collapse leaving isolated stacks.
So, stacks are formed by wave erosion — option (D).