Crossword Puzzle CROSSWORDOnline version Complete the crossword with the descriptions given by catalina santana cano 1 2 3 system formed by natural and artificial elements 4 natural elevation of the earth's surface, has a cone or peak shape 5 6 7 Large area of flat land or with slight undulations. 8 body of water, usually sweet 9 natural stream of water that flows with continuity 10 10 4 3 1 7 8 6 5 9