Question

কৈ মাছের জন্য দ্রবীভূত অক্সিজেন প্রয়োজন কেনো?​

Answer 1

Answer:

Dissolved oxygen (DO) is one of the most important indicators of water quality. It is essential for the survival of fish and other aquatic organisms. Oxygen dissolves in surface water due to the aerating action of winds. ... When dissolved oxygen becomes too low, fish and other aquatic organisms cannot survive.

Explanation:

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