Questions

Dry ice or Cardice is the solid form of Carbon dioxide.

1. It has an advantage of lower temperature than the water ice and doesn't leave any residue.

2. The reason why it is called as Dry ice is because unlike the normal ice, it won't melt into liquid form. It directly evaporates into the air as gas. That is Solid to gas form passing through liquid state is a phenomenon called as Sublimation.

3. The primary use of dry ice is as cooling agent.

The USSR( now a Common Wealth of Independent States) is spread over Europe and Asia

Nouns form the largest word class, and verbs the second-largest in English.

Medina

24 hours

Every line has an upper limit and a lower limit on the frequency of signals it can carry. This limited range is called the bandwidth