Which one of the following is considered the bioindicators of the environment?
Correct answer: B. Lichens
- A. Algae
- B. Lichens
- C. Fungi
- D. Bacteria
Explanation
Lichens are a symbiotic association between fungi and algae or cyanobacteria. They are highly sensitive to changes in air quality, particularly to levels of sulfur dioxide and other pollutants. This sensitivity makes them excellent bioindicators of air pollution and environmental health. Algae, fungi, and bacteria have roles in ecosystems and can indicate certain environmental conditions, but they are not as widely used as lichens for indicating air quality on a broad scale.
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