How is sedimentary rock created and what are the key processes involved in its formation?

Sedimentary rock is formed through the accumulation and compression of sediments over time. The key processes involved in its formation include weathering, erosion, transportation, deposition, compaction, and cementation. Weathering breaks down rocks into smaller pieces, which are then eroded and transported by water, wind, or ice. These sediments are eventually deposited and compacted under pressure, leading to the formation of sedimentary rock. Cementation occurs when minerals in the sediments bind them together, solidifying into rock.