Question

বাংলাদেশের সাংস্কৃতিক বৈচিত্র্য ভিন্নতা রয়েছে কি​

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. Oxygen is also introduced into the water as a byproduct of aquatic plant photosynthesis.

Step-by-step explanation: