The answer is radiator >.<
<span>273 K is the freezing point of water and it is equal to 0 degrees Celcius ,In this change ,heat is released so as to gain the suitable temperature for freezing.273 K is just the Celsius scale but with being 0 but the same scale ,this number was arrived at because temperature comes from the motion of a substance's particles.</span>
The correct answer is <span>make sure everyone on board is wearing a life jacket. This is done as a safety precaution in case things go bad because there should always be enough lifej ackets for all people aboard. They can remove them later. The procedure is similar to how flights have you wear the seatbelt in the beginning and the end.</span>
