Answer: At the point when earth was first framed, its environment was reasonable made out of hydrogen, helium, and different gases that contained hydrogen. ... Throughout an immense measure of time, a long period of time, the earth steadily cooled. At the point when the temperature dropped enough, water fume consolidated and went from a gas to fluid structure. This made mists.
The Iron Curtain referred to countries that Russia took over and acted as a buffer between Western Europe and Russia. Those nations included any country ending with -stan, Latvia, Estonia, and Yugoslavia.