Commonly, Earth is called the planet of water. Likewise, Earth is the only planet that has big amount of water. Water helps creatures to live comfortably. For example, all human beings can't live without water because 70% of body is consisted with water even in the vessels, sea creatures can't live without because oceans, lakes, rivers are the only habitats, and fishers, who earn money by fishing sea creatures, can't live without water. However, as the time passes, people don't cherish water.

Oil-spill is the biggest problem that occurs serious water pollution in Korea. 7 years ago, the coastal waters of Taean were covered with 12,547kl of crude oil. All the sand on the beach was turned black, mud flat was covered with oil, and birds that sat on the surface of the sea or mud flat were also covered with oil and turned black. In addition, in this year, oil-spill was occurred again in Yeosu. 164kl of crude oil was spilled out from oil-tanker.

There are more causes that can pollute the water. We should do something to protect our precious water. What else can we do? In the next article, I will report about the method that we student can do for water protection.