關於水污染

swimming, as a lot of diseases are present in the water. In most places it is not safe to eat the fish.

Lakes also have the same problems. Lake Baikal in Asia was once the cleanest in the world, with over 700 different kinds of plant and animal life. Now, however, the waters of this great lake, which is also the world＇s deepest (over 1,740 metres), have been dirtied by waste from a chemical factory.

In 1989 an oil tanker hit a rock off the northwest coast of Alaska. 35,000 tons of oil poured into the sea. The accident was one of the worst in history. More than 34,000 birds and 10,000 animals were killed. 4,800 square kilometres of ocean were polluted.

水污染造成的浪費，是工廠和城市。海洋能清洗自己，但某些海域，一旦變髒，不能這樣做。一個例子是地中海的歐洲和非洲之間的謊言。它onlyeone狹窄的入口，在西部海洋。

論地中海沿岸季度受到污染，不再適合游泳安全作爲很多疾病，在水存在。在大多數地方並不安全食用魚。

湖泊也有同樣的問題。在亞洲的貝加爾湖曾經是世界上最清潔，超過700的植物和動物生命不同。但是現在，這個偉大的湖泊，也是世界上最深的（超過1740米的水域），已弄污廢料化學工廠。

在1989年創下油輪關閉阿拉斯加西北海岸的岩石。 35,000噸油倒入大海。這次事故是最糟糕的歷史。超過34,000和10,000鳥類動物死亡。 4,800平方公里的海洋受到污染。