Uploaded on 2015-06-13 by RocketScienceFun

[1]: https://edxuploads.s3.amazonaws.com/1434211269967251.jpg A flow of water, the river Rhine. And a stock ment to last, the dike to protect the land. A stock of wet-bulk, perhaps oil, that entered as a flow, is stored for a while as a stock, and is ment to soon leave as a flow. And a flow of wind. The flow of wind become more and more important as we place more windmills. The dikes are getting bigger and higher as sea-level rises.