Warren County has a 3-member Board of County Commissioners that administer and oversee the various County departments, similar to all but 2 of the 88 Ohio counties. The elected commissioners serve four-year terms.
Except for the liquid outer core, most of the Earth takes the form of a rheid, a form of solid that can move or deform under pressure. Magma, as liquid, preferentially forms in high temperature, low pressure environments within several kilometers of the Earth's surface.agma also contains gases, which expand as the magma rises. Magma that is high in silica resists flowing, so expanding gases are trapped in it. Pressure builds up until the gases blast out in a violent, dangerous explosion.
Magma (from Ancient Greek Î¼Î¬Î³Î¼Î± (mÃ¡gma) meaning thick unguent) is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets and some natural satellites.