“Everything is full of feces’: Lichens on trees indicate how good the air is. “There is very little beard lichen in Germany.
Here in Sweden it can even grow in city parks.” “I love that lichen is made up of algae, fungi and bacteria and they just rock together.’ “If you have that on an apple tree, is that bad too? Can you scrape it off?” My news Limescale deposits in the toilet: Five home remedies for flawless toilet reading.