Volcano were proposed for volcano behavior before the modern understanding of the Earth's mantle structure as a semisolid material was developed. For decades after awareness that compression and radioactive materials may be heat sources, their contributions were specifically discounted. Volcanic action was often attributed to chemical reactions and a thin layer of molten rock near the surface. Volcano A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Earth's volcanoes occur because its crust is broken into 17 major,
When It Rains, It Pours (30 Rock) done. "When It Rains, It Pours" received generally positive reviews from television critics. According to the Nielsen Media Research, the episode was watched by 5.688 million households during its original broadcast, and received a 2.6 rating/8 share among viewers in the 18–49 demographic. For his work in the episode, Robert Carlock won the Writers Guild of America Award for Episodic Comedy. Liz Lemon (Tina Fey) is surprised that men have been noticing her, instead of resenting or ignoring her as they usually do. Her friend Jenna Maroney (Jane Krakowski) tells Liz that she is coming off as more confident since