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
Harry Potter and the Deathly Hallows – Part 2 (video game) critics, though some critics found "Part 2" an improvement of "Part 1". Lowest ratings on Metacritic came from GamesRadar, stating, "This is the absolute nadir of the series. Harry Potter has finally devolved into a total cash-in and we can't score it low enough." GamingXP gave the Xbox 360 and PC versions positive reviews, saying "Where graphical aesthetics, thrilling atmosphere and a cinematic soundtrack celebrate their marriage, the gamer always wins." "The Escapist" gave it two-and-a-half stars out of five and said of the game, "The shooting mechanics and levels are getting better but the encounters themselves are too repetitive.