Task: Misc.
Input (English): Question: A *** on top of a mountain is measured at 30 *** high in 1957. Fifty years later, in 2007, the *** is measured again and is now 21 *** high. What term best describes the *** for the rock's *** in ***?  (A) weathering (B) wind erosion (C) water erosion (D) chemical erosio.
Output (English): E.