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.
The thermosphere is the layer of Earth's atmosphere that still contains substantial molecules of heavier gases. It occurs below the outermost layer, the exosphere, which consists mainly of a near-vacuum of hydrogen and helium. The definition of thermosphere is the atmosphere layer between the mesophere and the exosphere The thermoshpere is the biggest of all the layers of the Earth's atmospher â¦ edirecly above the mesosphere and directly below the exoshpere. 2 people found this useful. Myra Birgitte (myrab51). 2,041,619 Contributions.