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In which condition will aquatic organisms in a river or lake be at greater risk from acid rain?

Answer and explanation

Correct answer: When the pH of water becomes very low

The governing concept is the effect of pH on aquatic ecosystems. Acid rain introduces acidic substances into a water body and can lower its pH. If the pH becomes very low, many fish, amphibians, invertebrates, eggs, and aquatic plants may be unable to survive or reproduce normally. Therefore, option A is correct. A pH near 7 is comparatively suitable, while clear appearance does not prove chemical safety and the absence of gas is not the deciding factor.

Related tags

Acid-RainAquatic-LifePhEnvironmentAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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