yes, the air becomes less dense and there is less oxygen
The composition of air depends upon altitude.
no
The composition is the same, the air is just less dense.
What is the composition of each layer of earth?
Silver tarnishing is a chemical change. It occurs when silver reacts with sulfur compounds in the air to form a layer of silver sulfide on the surface. This chemical reaction changes the composition of the silver, resulting in the tarnished appearance.
The composition of Ozone layer is O3
The green color on copper when it oxidizes in the air is a physical change, not a chemical change. The process is primarily due to the formation of a layer of copper oxide on the surface of the copper, which alters the appearance without changing the chemical composition of the copper itself.
The composition of the Earth's atmosphere (air) has changed over geological time. This change has been brought about by biological processes (life). The planets air is therefore part of the biosphere and any change in the air will be accompanied by biospheric changes.
what is the name of the uppermost layer of the atmoshere
Because cells consume 02 and release CO2 as waste. So the composition changes
if the composition of the air would change if the dust would be replaced from nanophase ferric oxides
Tarnishing of a silver fork in air is a chemical change because it involves a reaction between the silver and sulfur-containing compounds in the air to form silver sulfide. This reaction alters the chemical composition of the silver on the surface of the fork, resulting in the formation of a dull, tarnished layer.