Which one of the following is a very good pollution indicator ?
Fungi
Slime moulds
Lichens
Euglenoids
Lichens -
Symbiotic association between algae (phycobiont) and fungi (mycobiont).
- wherein
They are good pollution indicator.
Lichens often grow in most in hospitable and uninhabited places . Decrease in lichen population of an area is indicative of air pollution especially SO2 pollution