Answer: sand particles, small pebbles and weathered rock
Sedimentary rocks are the rocks that are formed by various physical, chemical, and biological processes. It is formed by the withered remains of the other rocks, biological wastes liberated by the living beings. These rocks are formed when the fine sand particles, stones, small pebbles and biological residues of living beings becomes cluster and attains compaction due to the effect of exerted pressure and temperature.