Answer:
The process is called freezing.
Step-by-step explanation:
The process in which matter changing from the liquid to the solid state is called Freezing. Generally the freezing point of liquid like water is 32°F or 0°C. Freezing is just the opposite of melting in which a solid melted to liquid. different liquid has different freezing point. the freezing point of liquid nitrogen at a pressure of one atmosphere is -345.8°F.