No, dry is not an adverb.Adjective -- The dry air is bothering my allergies.Verb -- I dry my clothes after I wash them.
the answer is atmosphere and trosphere
A Compound
The element Nitrogen has by far the highest % composition of dry air. It is also the highest percentage by volume in wet air. Only the percentage is known (78.09%), because it is impossible to measure the total volume of air as it is constantly changing.
deductive reasoning
Showing the amount of gases in the atmosphere as percentages of dry air allows for easy comparison and analysis of the composition of the atmosphere. Since the composition of dry air is relatively stable, expressing the gases as percentages of dry air helps to standardize the data for scientific purposes.
The two most common gases in dry air are nitrogen (N2) at approximately 78% and oxygen (O2) at around 21% of Earth's atmosphere composition.
The amount of water vapor that air can hold varies according to temperature. If you started with saturated air at 30 °C and cooled it down to 10 °C, water would condense out of it - changing the composition. The other gaseous components would not condense out until you reached cryogenic temperatures (ever heard of liquid nitrogen?). The composition of dry air is thus fairly constant but humid air varies widely according to temperature and degree of saturation, so it doesn't make a very good standard for describing the composition of air.
Most of Earth's dry air is made up of nitrogen (about 78%) and oxygen (about 21%). Other gases such as argon, carbon dioxide, and water vapor make up the remaining composition.
Showing gas concentrations as percentages of dry air allows for easier comparison of the relative amounts of different gases in the atmosphere. Dry air is a consistent reference point because its composition is relatively stable, making it a convenient baseline for expressing variations in gas concentrations.
The composition of air depends upon altitude.
Dry air is considered a homogeneous mixture because it is made up of a uniform composition of gases, primarily nitrogen, oxygen, and trace amounts of other gases.
The composition is the same, the air is just less dense.
Nitrogen gas makes up about 78% of Earth's atmosphere, which is what is considered as "dry air." It is a stable and non-reactive gas that helps maintain the balance of gases in the atmosphere. Other gases like oxygen, argon, and carbon dioxide make up the rest of the dry air.
Dry air is a gas
gas composition in air is the sum of the gas individual element and that of the air i.e oxygen and nitrogen
At standard pressure (100 kPa), dry air at 0 °C has a density of 1.2754 kg/m3 or 1.2754 g/L. Changing the composition, pressure, temperature or humidity changes the density.