Gaseous homogeneous mixture​

Gaseous homogenous mixture is air. It contains a number of gases. Its two main constituents are: oxygen (21%) and nitrogen (78%). The other gases are present in very small quantity.

hope my answer helps you

Explanation:

A homogeneous mixture is a solid, liquid, or gaseous mixture that has a uniform composition. No matter where you sample the mixture, the amount and type of components is the same. In contrast, a heterogeneous mixture lacks a uniform composition, so samples won't be identical.

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock