It is also defined by physicists as 'ionized matter'. This is the plasma of physics. Don't confuse it with 'biological plasma' which is a colourless jellylike liquid in our blood. All matter is composed of atoms which are 'neutral'.
The atmosphere consists of 4 layers: the troposphere, stratosphere, mesosphere, and thermosphere. Figure A shows the placement of the different layers of the atmosphere and how the temperature changes with height as you go from the ground up to space.The troposphere is the lowest layer of the atmosphere.This is the layer where we live and where weather happens. Temperature in this layer generally decreases with height. The boundary between the stratosphere and the troposphere is called the tropopause.he troposphere is the lowest layer of the atmosphere. This is the layer where we live and where weather happens. Temperature in this layer generally decreases with height. The boundary between the stratosphere and the troposphere is called the tropopause.
Mars's thin atmosphere. The layers of Earth's atmosphere. An atmosphere (New Latin atmosphaera, 17th century, from Greek á¼ÏÎ¼ÏÏ [ atmos ] vapor and ÏÏÎ±á¿ÏÎ± [ sphaira ] sphere) is a layer of gases surrounding a planet or other material body of sufficient mass that is held in place by the gravity of the body.