When you throw boiling water into very cold air, it can instantly turn into a cloud of ice crystals and vapor instead of falling to the ground as liquid. This happens because the boiling water is already close to becoming vapor, and when it's spread into tiny droplets, it has a huge surface area. In freezing temperatures-especially below about -30 °C (-22 °F)-the cold, dry air rapidly cools those droplets, causing them to evaporate or freeze midair into a white, misty cloud that looks almost like smoke.

First , know and understand the envirenmont before do action.