Question

Fish die as a result of water pollution due to
1)less bod
2)more tolerance range for oxygen
3)narrow tolerance range for oxygen
4)zero tolerance range for oxygen
Which one is correct

Answer 1

Fish die as a result of water pollution due to the narrow tolerance range for oxygen.

What is the difference between low and high dissolved oxygen?

• Oxygen is an important component of the air and an essential element for the survival of species on the earth's surface.
• Likewise, aquatic organisms also require a sufficient amount of oxygen for their survival.
• If the dissolved oxygen is low than the sufficient levels then it is a sign of low water quality and is called low oxygen dissolved.
• Similarly, if the oxygen available is sufficient then it is called high oxygen dissolved in water and water becomes purer.

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