Mist is caused by
(1) dry ice
(2) ice at low temperature
(3) water vapour at low temperature
(4) carbon-monoxide in solid form
Answer: (3) Mist is a phenomenon caused by small droplets of water suspended in the air. It can occur as part of natural weather or volcanic activity, and is common in cold air above warmer water, in exhaled air in the cold, and in a steam room of a sauna. It can also be created artificially with aerosol canisters if the humidity conditions are right. The only difference between mist and fog is visibility. Mist usually occurs near the shores and is often associated with fog. Mist can be as high as mountain tops when extreme temperatures are low. Freezing mist is similar to freezing fog, only the density is less and the visibility greater.
