登入選單
返回Google圖書搜尋
Drinking Water Quality
Susan L. ConnerLloyd A. Freeman
其他書名
Taking Responsibility
出版Waterworks Pub., 1998
主題Science / Environmental ScienceTechnology & Engineering / Environmental / GeneralTechnology & Engineering / Environmental / Water Supply
ISBN09662520989780966252095
URLhttp://books.google.com.hk/books?id=5etFAAAAYAAJ&hl=&source=gbs_api
註釋The "hydrologic cycle" is an endless loop of water recycling itself: surface water evaporates forming clouds; the clouds produce rain, which percolates into the earth's surface to become groundwater or creates lakes and streams; the underground water and streams flow into the sea; this water again evaporates into the air. The same water is used and reused millions and millions of times.