It means that you are working and your supporting you/your family or having money to live by
A thermometer is used to measure how cold or hot something is. It measures temperature. It can measure in °F or °C or K.
In the climax, usually the most tense situation in the conflict is introduced. After the climax follows with the falling action. For example a murder mystery's climax is maybe catching the murderer or the time the murder takes place. Hope this helps!
D tone is the answer hope it helps