the anse to the hopitid cola depositon colsa
Heat and pressure lead to the formation of metamorphic rocks.
The process that could directly lead to the formation of pumice rock is volcanice eruptions (explosive eruption of lava from a volcano).
the origin of lead ore is contact metamorphic origin
Darwin proposed that, over a long period of time, naturall selection could lead to the formation of new species.
Explosive eruption of lava from a volcano
Erosion would most likely lead to deposition, compaction, and cementation, processes involved in the creation of sedimentary rock.
Erosion
No it does not. They can only be converted from Sedimentary to Metamorphic be heat and pressure. Metamorphic can also convert to different higher great as the temperature and pressure increases. examsples are schist to gneiss.
Galena, lead sulfide, is a mineral, not a rock.
cumulonimbus clouds.Unstable atmospheric conditions lead to the formation of lightning and thunder in cumulonimbus clouds.
there are not three factors. Metamophic rocks are formed by heat and pressure. the heat sort of melts it slowly while the pressure compacts it. For an animation of the formation go to http://www.classzone.com/books/earth_science/terc/content/visualizations/es0607/es0607page01.cfm?chapter_no=visualization :)
condensation