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The ____________ is an important requirement of the aquatic life.(a) Dissolved nitrogen(b) Dissolved chlorine(c) Dissolved oxygen(d) Dissolved methaneThis question was posed to me in an international level competition.This key question is from Types of Water Pollutants and Effects topic in chapter Water of Applied Chemistry

Answer» CORRECT CHOICE is (c) DISSOLVED oxygen

To EXPLAIN I would say: The dissolved oxygen is an important REQUIREMENT of the aquatic life. They take oxygen from the water to survive.


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