Geoscience:World Water Resources
Water is essential for human life. The shortage of water is a serious problem facing all the countries in the world. Some countries have an abundant supply of water, while other countries are sgort of water. With the increase of world's population, the situation of water shortage has become more and more serious. In this video, we'll get a general idea about the water resources and effective ways of using water.
- Added：2006
- Country：Australia
- Duration：22
- Time of update：2011/3/11 15:03:55