Primary Succession on a Rock. 1  Obviously, on bare rock, no develop soil exists. The niche of the lichen (mutualistic relationship between algae and fungi) is to live on the rock where it releases carbon dioxide, which when mixed in rainwater, makes a weak acid (carbonic acid).
To dream of chaos, is a sign that you will go into a difficult period filled with change, uncertainty and unknowns. [Other similar dream interpretations]
There's no single, definitive meaning for symbols and images in dreams, Bergmann notes. But just as a smile usually means that someone is happy, these dream images are so common, that they do have a generally accepted meaning.. 1. Being Chased. This is one of the most commonly reported dreams.