Page 12 - Freshwater-Biology-and-Ecology-Handbook
P. 12

1




       PREFACE






                                                   PREFACE






























                If the biology and ecology of water


                ecosystems are in balance, then


                water will be fit for any human use.








































            12  |  Freshwater Biology and Ecology Handbook
      –
   7   8   9   10   11   12   13   14   15   16   17