![Image demonstrating impact of weathering on a cliff face.](http://static.sciencelearn.org.nz/images/images/000/002/111/full/Weathering-and-run-off20160930-22732-d37e9k.jpg?1674167652)
Rain slowly dissolves minerals from rocks – a process called weathering. These minerals eventually get washed into the sea, where some minerals, such as calcium carbonate, add to sediments at the bottom of the ocean. A lot of organic matter from the soil also gets carried to sea by rivers.
Acknowledgement: Terry and Janice Dowdeswell