Here's why:
* Weathering: This process breaks down the igneous rock into smaller pieces (sediments) through physical and chemical processes.
* Erosion: The weathered sediments are transported by wind, water, or ice to a new location.
* Deposition: The sediments settle and accumulate in layers.
* Compaction: The weight of overlying sediments presses the layers together, squeezing out water and air.
* Cementation: Minerals dissolved in groundwater precipitate between the sediment grains, binding them together to form solid rock.
This entire process is known as the rock cycle, where igneous rocks are transformed into sedimentary rocks, and can then be further transformed into metamorphic or even igneous rocks again through other processes.
