Atmosphere of Earth (see the temperature section, below). Because the general pattern of the temperature/altitude profile is constant and measurable by means of instrumented balloon soundings, the temperature behavior provides a useful metric to distinguish atmospheric layers. In this way, Earth's atmosphere can be divided (called atmospheric stratification) into five main layers. Excluding the exosphere, the atmosphere has four primary layers, which are the troposphere, stratosphere, mesosphere, and thermosphere. From highest to lowest, the five main layers are: The exosphere is the outermost layer of Earth's atmosphere (i.e. the upper limit of the atmosphere). It extends from the exobase, which is located at
Ben Elton Live from Planet Earth 250,000. Reviews of the first episode were largely negative. Colin Vickery of the "Herald Sun" called it "an early contender for worst show of the year", and Amanda Meade of "The Australian" called it "a screaming, embarrassing failure". "The Age"'s Karl Quinn stated there was "more to like than dislike" about the show. A third episode went to air in a delayed timeslot of 10:40 pm, but ratings dropped further to 189,000 viewers and on 23 February, Channel Nine announced the show had been cancelled. Ben Elton Live from Planet Earth Ben Elton Live From Planet Earth is an Australian