List reasons that gases are used to fill air bags other than solids or liquids

Brainliesttt ( look at the image attached) according to the map, yugoslavia was no longer aligned with the soviet union after 1948 was a satellite nation of the united states after 1948 became a part of the soviet union in 1948 was never a part of the eastern bloc

Draw conclusions  why might a cause like italian unification successfully draw people of very different backgrounds together?  

How did the byzantine culture influence russia?