the layers of the atmosphere

  1. Troposphere

  • The lowest layer, where we live and where weather occurs.

  • Temperature decreases with altitude.

  • Contains most of the atmosphere's mass.

  1. Stratosphere

  • Above the troposphere; contains the ozone layer.

  • Temperature increases with altitude due to ozone absorbing UV radiation.

  • Very stable air; used for long-distance flights.

  1. Mesosphere

  • Above the stratosphere; the coldest layer.

  • Temperature decreases with altitude.

  • Meteors burn up in this layer.

  1. Thermosphere

  • Above the mesosphere; very thin air.

  • Temperature increases with altitude due to absorption of high-energy solar radiation.

  • Where the International Space Station orbits.

  1. Exosphere

  • The outermost layer, gradually fading into space.

  • Extremely thin air; molecules can escape into space.

  • Satellites orbit in this region.