Oil spill caused serious water pollution and can pollute the lands around it.
It can kill animals such as fish, crab, clam and birds.
It can kill plants too.
Cleaning oil spill is hard and very expensive.
Below are photos of the oil spill in China from Yahoo News.
A view shows crude oil in the sea near Dalian, Liaoning province, July 18, 2010. REUTERS/China DailyCleaning up the oil spill in northeast China's Liaoning Province.(100718) -- DALIAN, July 18, 2010 (Xinhua) -- Photo taken on July 17, 2010 shows an aerial view of leaked oil floating off the coast of Dalian, northeast China's Liaoning Province. A 0.9-meter-diameter oil pipeline exploded at 6 p.m. Friday near Dalian's Xingang Harbor, triggering an adjacent smaller pipeline to explode too. The oil leak seriously polluted 11 square kilometers of sea and slightly affected 50 square kilometers also, according to local environment protection bureau. (Xinhua/Tian Jingyue) (wqq)In this photo taken Sunday, July 18, 2010, a Chinese worker tries to soak up oil from a spill in the sea near Dalian in northeast China's Liaoning province. Efforts were under way to contain and clean up a large oil slick after pipeline explosions at a northeastern Chinese port sent greasy black plumes into the ocean, state media reported Sunday. (AP Photo) ** CHINA OUT **Oil spill polluting the water.