Metamorphic rock the foliation is called "gneissosity"), granoblastic (includes granulite, some marbles and quartzite), and hornfelsic (includes hornfels and skarn). Metamorphic rock Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock (protolith) is subjected to heat (temperatures greater than 150 to 200 °C) and pressure ( or more), causing profound physical or chemical change. The protolith may be a sedimentary, igneous, or existing metamorphic rock. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's land surface. They are classified by
Whose Line Is It Anyway? (radio series) Whose Line Is It Anyway? (radio series) Whose Line Is It Anyway? (abbreviated to Whose Line? or WLIIA) is a short-form improvisational comedy radio programme. A television series of the same name was based on it in 1988. Following the conclusion of the British run in 1998, ABC began airing a version for the United States audience. The show consisted of a panel of four performers who create characters, scenes and songs on the spot, in the style of short-form improvisation games, many taken from theatresports. Topics for the games were based on predetermined prompts from the host. "Whose Line