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The pH of a lake decreases due to acid rain. Why is this dangerous for aquatic organisms?

Answer and explanation

Correct answer: Low pH can disturb life processes

The governing concept is the ecological effect of pH change. Acid rain introduces acidic substances into lakes, lowering the water’s pH. Aquatic organisms function within limited chemical conditions; excessive acidity can damage tissues, disturb enzyme activity, affect reproduction, and alter the availability of dissolved minerals. Thus very low pH can disrupt life processes, making option A correct. It does not turn water into food or make it basic.

Related tags

Acid RainAquatic LifePhAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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