elevation noun [C/U]. âº âheight above the âsurface of the âearth, or an âarea that is âhigher than the âsurrounding âland: [C] At âhigher elevations, the âair is âcolder. (Definition of elevation from the Cambridge Academic Content Dictionary Â© Cambridge University Press).
A dissolved gas is, simply enough, gas that has been dissolved into another material. This creates a solution, a mixture, where the gas is the solute, the minor component, and the other material, generally a liquid, is the solvent, the main component.
Definition of GREENHOUSE GAS. : any of various gaseous compounds (such as carbon dioxide) that absorb infrared radiation, trap heat in the atmosphere, and contribute to the greenhouse effect.ADVERTISEMENT. any of various gaseous compounds (such as carbon dioxide) that absorb infrared radiation, trap heat in the atmosphere, and contribute to the greenhouse effect.