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Q. |
An organism which can monitor air pollution is – |
A. | Bacteria |
B. | Lichen |
C. | Algae |
D. | Fungi |
Answer» B. Lichen | |
Explanation: Lichens can be used as air pollution indicators, especially of the concentration of sulfur dioxide in the atmosphere. Air pollutants dissolved in rainwater, especially sulfur dioxide, can damage lichens, and prevent them from growing. This makes lichens natural indicators of air pollution. |
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