Question

The amount of oxygen present is dissolved state in a water sample called as​

Answer 1

ᴀɴsᴡᴇ尺:

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Oxygen is also introduced into the water as a byproduct of aquatic plant photosynthesis. When dissolved oxygen becomes too low, fish and other aquatic organisms cannot survive. This can lead to decreased levels of biologically available oxygen, in some cases leading to fish kills and death to other aquatic organisms.

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Hope its help uhh :)