Ash in the Air

Ash

Ash is the solid remnants of fires. Specifically, ash refers to all non-aqueous, non-gaseous residues that remain after something burns. In analytical chemistry, to analyse the mineral and metal content of chemical samples, ash is the non-gaseous, non-liquid residue after complete combustion.

Atmosphere of Earth

The atmosphere of Earth consists of a layer of mixed gas that is retained by gravity, surrounding the Earth's surface. It contains variable quantities of suspended aerosols and particulates that create weather features such as clouds and hazes. The atmosphere serves as a protective buffer between the Earth's surface and outer space. It shields the surface from most meteoroids and ultraviolet solar radiation, reduces diurnal temperature variation – the temperature extremes between day and night, and keeps it warm through heat retention via the greenhouse effect. The atmosphere redistributes heat and moisture among different regions via air currents, and provides the chemical and climate conditions that allow life to exist and evolve on Earth.

ash

Symbol

1. ISO 639-3 language code for Abishira.

Noun

1. The solid remains of a fire.
2. The nonaqueous remains of a material subjected to any complete oxidation process.

air

Symbol

1. ISO 639-3 language code for Airoran.

Noun

1. The substance constituting Earth's atmosphere: a gaseous mixture of nitrogen, oxygen, and various trace gases.
2. The substance of the atmosphere seen as an agency of freshness.