what is a lichenव्हाट इज दिल्ली
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mtlb ye kaisa question h English and Hindi miw
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Lichens are composite organisms consisting of a symbiotic association between an alga and a fungus.
lichens occurred in some of the extreme environments on the earth -Arctic thunder, hot desert etc. Lichens are also be useful for scientists in assessing the effects of air pollution, ozone depletion, and mental contamination.
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