Lichens growing on the side of an oak tree close to a road in the New Forest Hampshire England UK GB. The absence of some lichens can indicate air pol
Lichens growing on the side of an oak tree close to a road in the New Forest Hampshire England UK GB. The absence of some lichens can indicate air pollution.
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Photo credit: © www.pqpictures.co.uk / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: air, clean, forest, lichen, lichens, oak, polluted, pollution, road, tree, uk