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.
A gas is a form of matter that does not have a defined shape or volume. Gases can consists of a single element, such as hydrogen gas (H 2), or may be a compound, such as carbon dioxide (CO 2), or a mixture of several gases, such as air.Here is a list of examples of 10 gases and their uses. 1  oxygen (O 2) : medical use, welding. 2  nitrogen (N 2): fire suppression, provide inert atmosphere.ases can consists of a single element, such as hydrogen gas (H 2), or may be a compound, such as carbon dioxide (CO 2), or a mixture of several gases, such as air. Here is a list of examples of 10 gases and their uses. 1  oxygen (O 2) : medical use, welding.