Question

What is the coldest substance on Earth? When this substance touches any object the object freezes immediately. ​

Answer 1

Answer:

Dry ice is made by liquefying carbon dioxide and injecting it into a holding tank, where it's frozen at a temperature of -109° F and compressed into solid ice. Depending on whether it's created in a pelletizer or a block press, dry ice can then be made into pellets or large blocks.