Complex sentence: After the sinking, the wreck continued to leak approximately 125 tons of oil a day, polluting the seabed and contaminating the coastline, especially along the territory of Galicia.
Split into simpler sentences: After the sinking, the wreck continued to leak oil. It leaked approximately 125 tons of oil a day, polluting the seabed and contaminating the coastline, especially along the territory of Galicia.