Verified Answer :

Sedimentary rocks are formed basically with erosion and deposition. Taking all the leftovers of the rocks that were there, and forming. 

erosion and deposition

suzybel

Sedimentary rocks, are formed throught eriosin and deposition.  Easy way to remeber this is Sediments sounds like cemented, parts of earth, so imagen shells, sand, rocks, so on... are being being cemented together. Sedimentary rocks are also relateble to remember like from Spongebob, Sandy Cheeks... this will help you remeber most are found in bodies of water or  erosion related.