Answer: Sedimentary rocks make up 75 percent of the rocks at the earth's surface but only 5 percent of the outer 10 miles of the earth. Sediment, as distinguished from sedimentary rock, is a collective name for loose, solid particles and is generally derived from weathering and erosion of preexisting rock.
One country that would be smaller than England are the Maldives, since they are a serious of islands that are only roughly 300 square kilometers in area.
The answer is soil erosion, increased pollution, and water runoff. Hope this Helps:)))