Where did the snowman go?

Is it from winter vacation homework? Because of the high temperature, it melts into steam.

Part of it melts into water and flows to the ground to evaporate into water vapor, such as the atmosphere.

Part of it sublimates into water vapor and enters the atmosphere.

100% correct answer:

It is because snow will sublimate even below zero degrees Celsius (solid ice will turn into gaseous water vapor), that is to say, the snow that makes a snowman will sublimate as a whole and feel shorter, but in fact it will become smaller as a whole.

This explanation has been extremely detailed, so answer to the teacher, the teacher is right! In addition, don't doubt whether there will be water vapor in the air at low temperature. The answer is: at low temperature, water vapor still exists in the air. You can pay attention to the weather forecast in winter.