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Weathering and run-off
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
Rights: Terry and Janice Dowdeswell
Published:30 June 2010Size: 152.08 KB