11th Class Chemistry Environmental Chemistry

  • question_answer 40)   Dissolved oxygen in water is very important for aquatic life. What processes are responsible for the reduction of dissolved oxygen in water?


      Dissolved oxygen is essential for sustaining animal and plant life in any aquatic system. The wastes such as domestic, industrial and biodegradable organic compounds are oxygen demanding wastes. These are decomposed by the bacterial population which in turn decreases the oxygen from water.

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