sedimentary
erosion
On the rocks means to have with ice only.
Head-rocks have no geologic meaning that I'm aware of.
There are several ways that rock is broken down. One of these is wind. Another is water, especially the cycle of freezing and thawing.
Dreams communicate through symbols, and big rocks might represent several different things: a firm foundation, a hiding place, a challenge in the sense of climbing, or a road block. Other elements in the dream may contain clues as to the dream's meaning: where the big rocks are located, what the dreamer is doing relative to the rocks, and what feelings the dreamer has about the rocks.
The Pacific or Magmatic theory says the Philippines came into existence through the eruptions of volcanoes beneath the ocean and the piling up of what they threw out. It adds that the rocks, which includes the cores of the mountain systems of today, are similar to the rocks found beneath the ocean.
the rocks
Rocks may be made of one type of mineral or a combination of several.
Yes, several. Most crinoids are sessile and live their life attached to underwater rocks, as do several starfish species.
Metamorphic rocks are rocks that have "morphed" into another kind of rock. These rocks were once igneous or sedimentary rocks.
Metamorphic rocks, where Metamorphosis is the Greek word meaning "change of form". Please see the related links.