OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which is a widely used bio-indicator species used to detect air that is badly polluted with sulfur dioxide?
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E. coli
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bacteria
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lichens
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viruses
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Explanation:
Detailed explanation-1: -Lichens have also been used in Germany as a bioindicator for air pollution, as they are sensitive to a number of air pollutants. Specifically, lichens are the most sensitive to sulfur dioxide, but other acidic pollutant gases as well as heavy metals and photo oxidants.
Detailed explanation-2: -Lichens are widely used as environmental indicators or bio-indicators. If air is very badly polluted with sulphur dioxide there may be no lichens present, just green algae may be found.
Detailed explanation-3: -Thus, lichens and mosses are good indicators of air pollution.
There is 1 question to complete.