yes
Light is not one of Aristotle's four elements. Aristotle's four elements are earth, water, air, and fire.
Air is not an element, but made of elements. Mostly nitrogen and oxygen, with helium, hydrogen and other trace elements.
The air is primarily composed of nitrogen and oxygen. About 78% Nitrogen, Oxygen 21%.
No, but some of the gasses which make up air are elements (such as oxygen, nitrogen) are elements.
Oxygen is not a mixture, it is a pure element. Air, however, is a mixture of many different elements. In other words, oxygen only has oxygen in it. Air has oxygen, nitrogen, carbon, hydrogen, and other elements in it.
elements
Oxygen, Nitrogen and Argon
Oxygen, Nitrogen, Estrogen
Nitrogen and oxygen are the two most abundant gases in the air. They are actually elements and not compounds. The two most abundant compounds would be water vapor and carbon dioxide.
It's a mixture of fuel and air. It can't be done without oxygen - that's one of the elements needed for fire,
Air is a mixture of gasses, about 78% nitrogen, 21% oxygen and then a dash of others. Nitrogen OTOH is one of the elements out of the Periodic Table, which I guess is what you mean with a pure substance.
Two elements found in unpolluted air are nitrogen, which makes up about 78% of the atmosphere, and oxygen, which makes up about 21%. These two elements are crucial for supporting life on Earth.