Here's why:
* Sedimentary Rocks: Weathering breaks down existing rocks (igneous, metamorphic, or even other sedimentary rocks) into smaller pieces called sediment. These sediments are then transported by wind, water, or ice and eventually deposited in layers. Over time, these layers are compacted and cemented together, forming sedimentary rocks.
* Metamorphic Rocks: While weathering doesn't directly form metamorphic rocks, it plays a crucial role in providing the source material. Pre-existing igneous, sedimentary, or even other metamorphic rocks are subjected to heat and pressure deep within the Earth's crust or due to tectonic activity. This process, called metamorphism, changes the mineral composition and texture of the original rocks, creating metamorphic rocks.
In summary, weathering is the process that breaks down rocks into sediments, which then form sedimentary rocks. These sedimentary rocks, along with igneous rocks and other metamorphic rocks, can be transformed into metamorphic rocks through the process of metamorphism.
