Which of the following do you think is/are solution(s)?
Bronze
Sugar in water
A solution is a special type of homogeneous mixture composed of two or more substances. Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances. Since its constituents are mixed so thoroughly, any pocket of, say, pure oxigen or nitrogen etc cant be found easily. An alloy may be a solid solution of metal elements which has uniform properties throughout. Bronze is a solution of copper and usually tin.