Atmosphere of Earth However, polar stratospheric or nacreous clouds are occasionally seen in the lower part of this layer of the atmosphere where the air is coldest. The stratosphere is the highest layer that can be accessed by jet-powered aircraft. The troposphere is the lowest layer of Earth's atmosphere. It extends from Earth's surface to an average height of about , although this altitude varies from about at the geographic poles to at the Equator, with some variation due to weather. The troposphere is bounded above by the tropopause, a boundary marked in most places by a temperature inversion (i.e. a layer of
Is This the World We Created...? B minor, but the recording sounds one semitone lower. The song was performed at Live Aid as an encore, with additional instruments and arrangements in the last part; changes was present also in the vocal line. A month before their Live Aid appearance, "Is This the World We Created…?" was Queen's contribution to the multi-artist compilation "Greenpeace – The Album". Is This the World We Created...? "Is This the World We Created...?" is a song by the British rock band Queen, which was originally released on their eleventh studio album "The Works" in 1984. The song was played at every