It is a mixture MAINLY of elements- nitrogen, oxygen, argon. However, there are a small number of compounds in the mixture- such as carbon dioxide (compound of carbon and oxygen)
Both are mixtures.
Both are mixtures.
Element
Iron is an element
Potatoes are mixtures.
Alloys are mixtures
ALL compounds are mixtures
Water is a compound - H2O.
If something is not a mixture then it is a pure substance, either an element or a compound.
Oils are mixtures of organic compounds.
Reese’s pieces are mixtures?
Most adhesives are compounds or mixtures of compounds.