Atmosphere of Earth relatively warm air above a colder one), and in others by a zone which is isothermal with height. Although variations do occur, the temperature usually declines with increasing altitude in the troposphere because the troposphere is mostly heated through energy transfer from the surface. Thus, the lowest part of the troposphere (i.e. Earth's surface) is typically the warmest section of the troposphere. This promotes vertical mixing (hence, the origin of its name in the Greek word τρόπος, "tropos", meaning "turn"). The troposphere contains roughly 80% of the mass of Earth's atmosphere. The troposphere is denser than all its overlying atmospheric
The Street Where I Live The Street Where I Live The Street Where I Live is a non-fiction work by Alan Jay Lerner. In it, he describes the genesis of three of his most famous musicals: "Gigi", "My Fair Lady" and "Camelot". It is auto-biographical, but not strictly speaking an autobiography as he mentions his seven marriages only briefly, and refers to his other works only in passing. Lerner was generous to his collaborators, except for Stanley Donen, who directed the film version of Antoine de Saint-Exupéry's story "The Little Prince", and treated the music score with what Lerner felt was contempt. Lerner also expresses