Please observe the three boulders at this location. The rock in this are is primarily limestone which is composed mostly of cacium corbonate. Limestone is a soft rock. Moss grows on rocks because instead of actual roots it has rhizoids which are tiny hair-like structures that attach to the rock surface. Rhizoids allow the moss to absorb moisture from the surrounding environment and rainwater or dew on the rocks surface. Rocks provide a stable surface for moss to cling to especially in damp shady areas where the necessary moisture is accessable. Rock crevices and irregularities are ideal spots for moss establishment. Biological wethering is the process by which living organisms break down and alter rocks through their activities. Moss, a living organism, releases substances that disolve the minerals breaking down the rock causing a rough or jagged surface and discoloration.
To log this cache please answer the following questions:
- Estimate the average size of the three boulders at the posted corrdinates?
- Estimate what percentage of the rocks are covered in moss?
- What key environmental factors cause these boulders to host this thick, lush moss?