Why is acid rain harmful to aquatic organisms?
Answer and explanation
Correct answer: It lowers water pH and affects life processes
The governing concept is environmental acidification. Acid rain contains acids formed when atmospheric pollutants react with water and oxygen. When this rain enters lakes or streams, it can lower their pH. Aquatic organisms may then experience disturbed enzyme activity, reproduction, respiration, and mineral balance; sensitive species can decline or die. Hence option A is correct, while B, C, and D do not describe the chemical or biological effect.
Frequently asked questions
What is the correct answer to this question?
It lowers water pH and affects life processes
Why is this the correct answer?
The governing concept is environmental acidification. Acid rain contains acids formed when atmospheric pollutants react with water and oxygen. When this rain enters lakes or streams, it can lower their pH. Aquatic organisms may then experience disturbed enzyme activity, reproduction, respiration, and mineral balance; sensitive species can decline or die. Hence option A is correct, while B, C, and D do not describe the chemical or biological effect.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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