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]
Dream meaning Stranger. The exact meaning is evaluated on the basis of your reaction to the strangers appearance in dreams. Appearance of strangers in your dreams may imply to some hid dent emotions that are unknown to you. It also means facts that you regret to accept or are neglected by you.