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Which of the following processes gradually smoothes, rounds or polishes rock surfaces over time?

22. Which of the following processes gradually smoothes, rounds or polishes rock surfaces over time?

1. Deflation
2. Deposition
3. Erosion
4. Abrasion

Answer

The correct answer is: D) Abrasion

Explanation

Abrasion occurs as a result of water-borne sediments, wind-blown particles, or moving ice gradually smoothing, rounding, or polishing rock surfaces.