Q 32. A location with luxuriant growth of lichens on the trees indicates that the: Option A Trees are heavily infested. Option B Location is highly polluted. Option C Location is not polluted. Option D Trees are very healthy.
Q 32. A location with luxuriant growth of lichens on the trees indicates that the: Option A Trees are heavily infested. Option B Location is highly polluted. Option C Location is not polluted. Option D Trees are very healthy.

Correct Option: C

Solution: Indicators of air pollution are The lichens. Air provides them their nutrition. So, if a particular area’s air is polluted then lichens also not found in that area. So, we say, a location with luxuriant growth of lichens on the trees indicates that the location is not polluted.