Moss, blowing bubbles ( $90 )

14. Moss, blowing bubbles show how when moss photosynthesises under water, bubbles of oxygen accumulate on the moss surface. We have dated turfs like these that are up to 6 cm deep and over a hundred years old. Life is tough and moss growth is very slow (0.3-3.00 mm a year) in Antarctica, but these mosses were blowing bubbles before Amundsen reached the South Pole.