What is erosion?
moonlight looseness of dirt or compost permineralization water vapor fog The area was once underwater fissures of hot, acidic water contact between rocks
A B C D E F G H
Smoothed, grooved and polished rocks are produced by glacial erosion.
contact between rocks is erosion
What is erosion? (A) moonlight (B) looseness of dirt or compost (C) permineralization (D) water vapor (E) fog (F) The area was once underwater (G) fissures of hot, acidic water (H) contact between rocks